Home / 83,119.23-124,148.45-75,209.58

Finding the Fourth Proportional to 83,119.23, 124,148.45 and 75,209.58

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Solution

The fourth proportional to 83,119.23, 124,148.45 and 75,209.58 is: 112,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,119.23 : 124,148.45 = 75,209.58 : x
  2. Step 2: Convert to fraction form
    83,119.23/124,148.45 = 75,209.58/x
  3. Step 3: Cross multiply
    83,119.23x = 124,148.45 × 75,209.58
  4. Step 4: Simplify right side
    83,119.23x = 9,337,152,970.17
  5. Step 5: Solve for x
    x = 9,337,152,970.17/83,119.23
  6. Step 6: Final answer
    x = 112,334.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.