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Finding the Fourth Proportional to 92,460.80, 139,000.56 and 72,974.24

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Solution

The fourth proportional to 92,460.80, 139,000.56 and 72,974.24 is: 109,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,460.80 : 139,000.56 = 72,974.24 : x
  2. Step 2: Convert to fraction form
    92,460.80/139,000.56 = 72,974.24/x
  3. Step 3: Cross multiply
    92,460.80x = 139,000.56 × 72,974.24
  4. Step 4: Simplify right side
    92,460.80x = 10,143,460,225.57
  5. Step 5: Solve for x
    x = 10,143,460,225.57/92,460.80
  6. Step 6: Final answer
    x = 109,705.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.