Home / 158,225.83-218,308.47-90,218.00

Finding the Fourth Proportional to 158,225.83, 218,308.47 and 90,218.00

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Solution

The fourth proportional to 158,225.83, 218,308.47 and 90,218.00 is: 124,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,225.83 : 218,308.47 = 90,218.00 : x
  2. Step 2: Convert to fraction form
    158,225.83/218,308.47 = 90,218.00/x
  3. Step 3: Cross multiply
    158,225.83x = 218,308.47 × 90,218.00
  4. Step 4: Simplify right side
    158,225.83x = 19,695,353,753.91
  5. Step 5: Solve for x
    x = 19,695,353,753.91/158,225.83
  6. Step 6: Final answer
    x = 124,476.22

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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.