Home / 156,541.25-216,026.93-89,486.21

Finding the Fourth Proportional to 156,541.25, 216,026.93 and 89,486.21

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Solution

The fourth proportional to 156,541.25, 216,026.93 and 89,486.21 is: 123,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,541.25 : 216,026.93 = 89,486.21 : x
  2. Step 2: Convert to fraction form
    156,541.25/216,026.93 = 89,486.21/x
  3. Step 3: Cross multiply
    156,541.25x = 216,026.93 × 89,486.21
  4. Step 4: Simplify right side
    156,541.25x = 19,331,431,223.64
  5. Step 5: Solve for x
    x = 19,331,431,223.64/156,541.25
  6. Step 6: Final answer
    x = 123,490.97

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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.