Home / 123,902.56-171,126.48-83,547.04

Finding the Fourth Proportional to 123,902.56, 171,126.48 and 83,547.04

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Solution

The fourth proportional to 123,902.56, 171,126.48 and 83,547.04 is: 115,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,902.56 : 171,126.48 = 83,547.04 : x
  2. Step 2: Convert to fraction form
    123,902.56/171,126.48 = 83,547.04/x
  3. Step 3: Cross multiply
    123,902.56x = 171,126.48 × 83,547.04
  4. Step 4: Simplify right side
    123,902.56x = 14,297,110,869.62
  5. Step 5: Solve for x
    x = 14,297,110,869.62/123,902.56
  6. Step 6: Final answer
    x = 115,389.96

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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.