Home / 123,337.79-170,206.31-66,749.16

Finding the Fourth Proportional to 123,337.79, 170,206.31 and 66,749.16

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Solution

The fourth proportional to 123,337.79, 170,206.31 and 66,749.16 is: 92,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,337.79 : 170,206.31 = 66,749.16 : x
  2. Step 2: Convert to fraction form
    123,337.79/170,206.31 = 66,749.16/x
  3. Step 3: Cross multiply
    123,337.79x = 170,206.31 × 66,749.16
  4. Step 4: Simplify right side
    123,337.79x = 11,361,129,024.35
  5. Step 5: Solve for x
    x = 11,361,129,024.35/123,337.79
  6. Step 6: Final answer
    x = 92,113.93

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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.