Home / 102,280.19-141,146.69-56,966.90

Finding the Fourth Proportional to 102,280.19, 141,146.69 and 56,966.90

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Solution

The fourth proportional to 102,280.19, 141,146.69 and 56,966.90 is: 78,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,280.19 : 141,146.69 = 56,966.90 : x
  2. Step 2: Convert to fraction form
    102,280.19/141,146.69 = 56,966.90/x
  3. Step 3: Cross multiply
    102,280.19x = 141,146.69 × 56,966.90
  4. Step 4: Simplify right side
    102,280.19x = 8,040,688,383.99
  5. Step 5: Solve for x
    x = 8,040,688,383.99/102,280.19
  6. Step 6: Final answer
    x = 78,614.33

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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.