Home / 107,303,134.40-160,954,701.60-85,384,145.60

Finding the Fourth Proportional to 107,303,134.40, 160,954,701.60 and 85,384,145.60

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Solution

The fourth proportional to 107,303,134.40, 160,954,701.60 and 85,384,145.60 is: 128,076,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,303,134.40 : 160,954,701.60 = 85,384,145.60 : x
  2. Step 2: Convert to fraction form
    107,303,134.40/160,954,701.60 = 85,384,145.60/x
  3. Step 3: Cross multiply
    107,303,134.40x = 160,954,701.60 × 85,384,145.60
  4. Step 4: Simplify right side
    107,303,134.40x = 13,742,979,676,418,952
  5. Step 5: Solve for x
    x = 13,742,979,676,418,952/107,303,134.40
  6. Step 6: Final answer
    x = 128,076,218.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.