Home / 102,549.61-141,518.49-56,609.29

Finding the Fourth Proportional to 102,549.61, 141,518.49 and 56,609.29

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Solution

The fourth proportional to 102,549.61, 141,518.49 and 56,609.29 is: 78,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,549.61 : 141,518.49 = 56,609.29 : x
  2. Step 2: Convert to fraction form
    102,549.61/141,518.49 = 56,609.29/x
  3. Step 3: Cross multiply
    102,549.61x = 141,518.49 × 56,609.29
  4. Step 4: Simplify right side
    102,549.61x = 8,011,261,240.77
  5. Step 5: Solve for x
    x = 8,011,261,240.77/102,549.61
  6. Step 6: Final answer
    x = 78,120.84

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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.