Home / 424,126.69-636,055.04-139,764.17

Finding the Fourth Proportional to 424,126.69, 636,055.04 and 139,764.17

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Solution

The fourth proportional to 424,126.69, 636,055.04 and 139,764.17 is: 209,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,126.69 : 636,055.04 = 139,764.17 : x
  2. Step 2: Convert to fraction form
    424,126.69/636,055.04 = 139,764.17/x
  3. Step 3: Cross multiply
    424,126.69x = 636,055.04 × 139,764.17
  4. Step 4: Simplify right side
    424,126.69x = 88,897,706,679.46
  5. Step 5: Solve for x
    x = 88,897,706,679.46/424,126.69
  6. Step 6: Final answer
    x = 209,601.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.