Home / 103,302.60-142,545.84-57,974.46

Finding the Fourth Proportional to 103,302.60, 142,545.84 and 57,974.46

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Solution

The fourth proportional to 103,302.60, 142,545.84 and 57,974.46 is: 79,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,302.60 : 142,545.84 = 57,974.46 : x
  2. Step 2: Convert to fraction form
    103,302.60/142,545.84 = 57,974.46/x
  3. Step 3: Cross multiply
    103,302.60x = 142,545.84 × 57,974.46
  4. Step 4: Simplify right side
    103,302.60x = 8,264,018,099.25
  5. Step 5: Solve for x
    x = 8,264,018,099.25/103,302.60
  6. Step 6: Final answer
    x = 79,998.16

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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.