Home / 102,236.40-141,087.69-56,916.36

Finding the Fourth Proportional to 102,236.40, 141,087.69 and 56,916.36

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Solution

The fourth proportional to 102,236.40, 141,087.69 and 56,916.36 is: 78,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,236.40 : 141,087.69 = 56,916.36 : x
  2. Step 2: Convert to fraction form
    102,236.40/141,087.69 = 56,916.36/x
  3. Step 3: Cross multiply
    102,236.40x = 141,087.69 × 56,916.36
  4. Step 4: Simplify right side
    102,236.40x = 8,030,197,755.61
  5. Step 5: Solve for x
    x = 8,030,197,755.61/102,236.40
  6. Step 6: Final answer
    x = 78,545.39

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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.