Home / 127,345.68-175,729.32-70,755.12

Finding the Fourth Proportional to 127,345.68, 175,729.32 and 70,755.12

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Solution

The fourth proportional to 127,345.68, 175,729.32 and 70,755.12 is: 97,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,345.68 : 175,729.32 = 70,755.12 : x
  2. Step 2: Convert to fraction form
    127,345.68/175,729.32 = 70,755.12/x
  3. Step 3: Cross multiply
    127,345.68x = 175,729.32 × 70,755.12
  4. Step 4: Simplify right side
    127,345.68x = 12,433,749,124.12
  5. Step 5: Solve for x
    x = 12,433,749,124.12/127,345.68
  6. Step 6: Final answer
    x = 97,637.78

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1.5x scale

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.