Home / 103,836.38-143,294.28-56,089.76

Finding the Fourth Proportional to 103,836.38, 143,294.28 and 56,089.76

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Solution

The fourth proportional to 103,836.38, 143,294.28 and 56,089.76 is: 77,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,836.38 : 143,294.28 = 56,089.76 : x
  2. Step 2: Convert to fraction form
    103,836.38/143,294.28 = 56,089.76/x
  3. Step 3: Cross multiply
    103,836.38x = 143,294.28 × 56,089.76
  4. Step 4: Simplify right side
    103,836.38x = 8,037,341,058.10
  5. Step 5: Solve for x
    x = 8,037,341,058.10/103,836.38
  6. Step 6: Final answer
    x = 77,403.90

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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.