Home / 103,657.60-143,045.76-58,335.58

Finding the Fourth Proportional to 103,657.60, 143,045.76 and 58,335.58

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Solution

The fourth proportional to 103,657.60, 143,045.76 and 58,335.58 is: 80,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,657.60 : 143,045.76 = 58,335.58 : x
  2. Step 2: Convert to fraction form
    103,657.60/143,045.76 = 58,335.58/x
  3. Step 3: Cross multiply
    103,657.60x = 143,045.76 × 58,335.58
  4. Step 4: Simplify right side
    103,657.60x = 8,344,657,376.14
  5. Step 5: Solve for x
    x = 8,344,657,376.14/103,657.60
  6. Step 6: Final answer
    x = 80,502.13

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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.