Home / 105,337.58-145,366.30-57,590.90

Finding the Fourth Proportional to 105,337.58, 145,366.30 and 57,590.90

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Solution

The fourth proportional to 105,337.58, 145,366.30 and 57,590.90 is: 79,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,337.58 : 145,366.30 = 57,590.90 : x
  2. Step 2: Convert to fraction form
    105,337.58/145,366.30 = 57,590.90/x
  3. Step 3: Cross multiply
    105,337.58x = 145,366.30 × 57,590.90
  4. Step 4: Simplify right side
    105,337.58x = 8,371,776,046.67
  5. Step 5: Solve for x
    x = 8,371,776,046.67/105,337.58
  6. Step 6: Final answer
    x = 79,475.68

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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.