Home / 108,781.38-150,120.63-61,038.18

Finding the Fourth Proportional to 108,781.38, 150,120.63 and 61,038.18

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Solution

The fourth proportional to 108,781.38, 150,120.63 and 61,038.18 is: 84,233.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,781.38 : 150,120.63 = 61,038.18 : x
  2. Step 2: Convert to fraction form
    108,781.38/150,120.63 = 61,038.18/x
  3. Step 3: Cross multiply
    108,781.38x = 150,120.63 × 61,038.18
  4. Step 4: Simplify right side
    108,781.38x = 9,163,090,035.65
  5. Step 5: Solve for x
    x = 9,163,090,035.65/108,781.38
  6. Step 6: Final answer
    x = 84,233.99

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1.5x scale

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.