Home / 103,937.08-143,432.72-56,190.40

Finding the Fourth Proportional to 103,937.08, 143,432.72 and 56,190.40

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Solution

The fourth proportional to 103,937.08, 143,432.72 and 56,190.40 is: 77,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,937.08 : 143,432.72 = 56,190.40 : x
  2. Step 2: Convert to fraction form
    103,937.08/143,432.72 = 56,190.40/x
  3. Step 3: Cross multiply
    103,937.08x = 143,432.72 × 56,190.40
  4. Step 4: Simplify right side
    103,937.08x = 8,059,541,909.89
  5. Step 5: Solve for x
    x = 8,059,541,909.89/103,937.08
  6. Step 6: Final answer
    x = 77,542.51

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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.