Home / 128,052.24-176,712.12-71,462.40

Finding the Fourth Proportional to 128,052.24, 176,712.12 and 71,462.40

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Solution

The fourth proportional to 128,052.24, 176,712.12 and 71,462.40 is: 98,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,052.24 : 176,712.12 = 71,462.40 : x
  2. Step 2: Convert to fraction form
    128,052.24/176,712.12 = 71,462.40/x
  3. Step 3: Cross multiply
    128,052.24x = 176,712.12 × 71,462.40
  4. Step 4: Simplify right side
    128,052.24x = 12,628,272,204.29
  5. Step 5: Solve for x
    x = 12,628,272,204.29/128,052.24
  6. Step 6: Final answer
    x = 98,618.13

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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.