Home / 156,070.13-215,376.77-89,002.13

Finding the Fourth Proportional to 156,070.13, 215,376.77 and 89,002.13

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Solution

The fourth proportional to 156,070.13, 215,376.77 and 89,002.13 is: 122,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,070.13 : 215,376.77 = 89,002.13 : x
  2. Step 2: Convert to fraction form
    156,070.13/215,376.77 = 89,002.13/x
  3. Step 3: Cross multiply
    156,070.13x = 215,376.77 × 89,002.13
  4. Step 4: Simplify right side
    156,070.13x = 19,168,990,428.14
  5. Step 5: Solve for x
    x = 19,168,990,428.14/156,070.13
  6. Step 6: Final answer
    x = 122,822.93

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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.