Home / 156,788.52-216,457.91-103,229.23

Finding the Fourth Proportional to 156,788.52, 216,457.91 and 103,229.23

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Solution

The fourth proportional to 156,788.52, 216,457.91 and 103,229.23 is: 142,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,788.52 : 216,457.91 = 103,229.23 : x
  2. Step 2: Convert to fraction form
    156,788.52/216,457.91 = 103,229.23/x
  3. Step 3: Cross multiply
    156,788.52x = 216,457.91 × 103,229.23
  4. Step 4: Simplify right side
    156,788.52x = 22,344,783,376.71
  5. Step 5: Solve for x
    x = 22,344,783,376.71/156,788.52
  6. Step 6: Final answer
    x = 142,515.43

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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.