Home / 105,493.66-145,581.24-57,747.04

Finding the Fourth Proportional to 105,493.66, 145,581.24 and 57,747.04

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Solution

The fourth proportional to 105,493.66, 145,581.24 and 57,747.04 is: 79,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493.66 : 145,581.24 = 57,747.04 : x
  2. Step 2: Convert to fraction form
    105,493.66/145,581.24 = 57,747.04/x
  3. Step 3: Cross multiply
    105,493.66x = 145,581.24 × 57,747.04
  4. Step 4: Simplify right side
    105,493.66x = 8,406,885,689.53
  5. Step 5: Solve for x
    x = 8,406,885,689.53/105,493.66
  6. Step 6: Final answer
    x = 79,690.91

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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.