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Finding the Fourth Proportional to 159,547.47, 220,177.02 and 87,930.11

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Solution

The fourth proportional to 159,547.47, 220,177.02 and 87,930.11 is: 121,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,547.47 : 220,177.02 = 87,930.11 : x
  2. Step 2: Convert to fraction form
    159,547.47/220,177.02 = 87,930.11/x
  3. Step 3: Cross multiply
    159,547.47x = 220,177.02 × 87,930.11
  4. Step 4: Simplify right side
    159,547.47x = 19,360,189,588.07
  5. Step 5: Solve for x
    x = 19,360,189,588.07/159,547.47
  6. Step 6: Final answer
    x = 121,344.38

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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.