Home / 151,058.16-208,470.45-99,982.89

Finding the Fourth Proportional to 151,058.16, 208,470.45 and 99,982.89

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Solution

The fourth proportional to 151,058.16, 208,470.45 and 99,982.89 is: 137,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,058.16 : 208,470.45 = 99,982.89 : x
  2. Step 2: Convert to fraction form
    151,058.16/208,470.45 = 99,982.89/x
  3. Step 3: Cross multiply
    151,058.16x = 208,470.45 × 99,982.89
  4. Step 4: Simplify right side
    151,058.16x = 20,843,478,070.60
  5. Step 5: Solve for x
    x = 20,843,478,070.60/151,058.16
  6. Step 6: Final answer
    x = 137,983.13

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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.