Home / 102,503.08-141,454.02-57,790.76

Finding the Fourth Proportional to 102,503.08, 141,454.02 and 57,790.76

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Solution

The fourth proportional to 102,503.08, 141,454.02 and 57,790.76 is: 79,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,503.08 : 141,454.02 = 57,790.76 : x
  2. Step 2: Convert to fraction form
    102,503.08/141,454.02 = 57,790.76/x
  3. Step 3: Cross multiply
    102,503.08x = 141,454.02 × 57,790.76
  4. Step 4: Simplify right side
    102,503.08x = 8,174,735,320.86
  5. Step 5: Solve for x
    x = 8,174,735,320.86/102,503.08
  6. Step 6: Final answer
    x = 79,751.12

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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.