Home / 123,122.14-169,911.15-69,407.16

Finding the Fourth Proportional to 123,122.14, 169,911.15 and 69,407.16

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Solution

The fourth proportional to 123,122.14, 169,911.15 and 69,407.16 is: 95,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,122.14 : 169,911.15 = 69,407.16 : x
  2. Step 2: Convert to fraction form
    123,122.14/169,911.15 = 69,407.16/x
  3. Step 3: Cross multiply
    123,122.14x = 169,911.15 × 69,407.16
  4. Step 4: Simplify right side
    123,122.14x = 11,793,050,373.83
  5. Step 5: Solve for x
    x = 11,793,050,373.83/123,122.14
  6. Step 6: Final answer
    x = 95,783.35

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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.