Home / 158,582.49-218,843.61-86,962.50

Finding the Fourth Proportional to 158,582.49, 218,843.61 and 86,962.50

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Solution

The fourth proportional to 158,582.49, 218,843.61 and 86,962.50 is: 120,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,582.49 : 218,843.61 = 86,962.50 : x
  2. Step 2: Convert to fraction form
    158,582.49/218,843.61 = 86,962.50/x
  3. Step 3: Cross multiply
    158,582.49x = 218,843.61 × 86,962.50
  4. Step 4: Simplify right side
    158,582.49x = 19,031,187,434.63
  5. Step 5: Solve for x
    x = 19,031,187,434.63/158,582.49
  6. Step 6: Final answer
    x = 120,008.13

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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.