Home / 123,535.12-170,478.45-66,946.50

Finding the Fourth Proportional to 123,535.12, 170,478.45 and 66,946.50

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Solution

The fourth proportional to 123,535.12, 170,478.45 and 66,946.50 is: 92,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,535.12 : 170,478.45 = 66,946.50 : x
  2. Step 2: Convert to fraction form
    123,535.12/170,478.45 = 66,946.50/x
  3. Step 3: Cross multiply
    123,535.12x = 170,478.45 × 66,946.50
  4. Step 4: Simplify right side
    123,535.12x = 11,412,935,552.93
  5. Step 5: Solve for x
    x = 11,412,935,552.93/123,535.12
  6. Step 6: Final answer
    x = 92,386.16

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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.