Home / 107,148.64-147,704.16-71,262.40

Finding the Fourth Proportional to 107,148.64, 147,704.16 and 71,262.40

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Solution

The fourth proportional to 107,148.64, 147,704.16 and 71,262.40 is: 98,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,148.64 : 147,704.16 = 71,262.40 : x
  2. Step 2: Convert to fraction form
    107,148.64/147,704.16 = 71,262.40/x
  3. Step 3: Cross multiply
    107,148.64x = 147,704.16 × 71,262.40
  4. Step 4: Simplify right side
    107,148.64x = 10,525,752,931.58
  5. Step 5: Solve for x
    x = 10,525,752,931.58/107,148.64
  6. Step 6: Final answer
    x = 98,235.06

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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.