Home / 90,130.85-124,247.95-70,949.17

Finding the Fourth Proportional to 90,130.85, 124,247.95 and 70,949.17

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Solution

The fourth proportional to 90,130.85, 124,247.95 and 70,949.17 is: 97,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,130.85 : 124,247.95 = 70,949.17 : x
  2. Step 2: Convert to fraction form
    90,130.85/124,247.95 = 70,949.17/x
  3. Step 3: Cross multiply
    90,130.85x = 124,247.95 × 70,949.17
  4. Step 4: Simplify right side
    90,130.85x = 8,815,288,926.70
  5. Step 5: Solve for x
    x = 8,815,288,926.70/90,130.85
  6. Step 6: Final answer
    x = 97,805.46

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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.