Home / 103,611.12-142,981.92-58,285.68

Finding the Fourth Proportional to 103,611.12, 142,981.92 and 58,285.68

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Solution

The fourth proportional to 103,611.12, 142,981.92 and 58,285.68 is: 80,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.12 : 142,981.92 = 58,285.68 : x
  2. Step 2: Convert to fraction form
    103,611.12/142,981.92 = 58,285.68/x
  3. Step 3: Cross multiply
    103,611.12x = 142,981.92 × 58,285.68
  4. Step 4: Simplify right side
    103,611.12x = 8,333,798,434.91
  5. Step 5: Solve for x
    x = 8,333,798,434.91/103,611.12
  6. Step 6: Final answer
    x = 80,433.44

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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.