Home / 107,138.14-147,840.70-59,387.44

Finding the Fourth Proportional to 107,138.14, 147,840.70 and 59,387.44

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Solution

The fourth proportional to 107,138.14, 147,840.70 and 59,387.44 is: 81,949.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.14 : 147,840.70 = 59,387.44 : x
  2. Step 2: Convert to fraction form
    107,138.14/147,840.70 = 59,387.44/x
  3. Step 3: Cross multiply
    107,138.14x = 147,840.70 × 59,387.44
  4. Step 4: Simplify right side
    107,138.14x = 8,779,880,700.81
  5. Step 5: Solve for x
    x = 8,779,880,700.81/107,138.14
  6. Step 6: Final answer
    x = 81,949.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.