Home / 152,054.22-209,828.70-88,387

Finding the Fourth Proportional to 152,054.22, 209,828.70 and 88,387

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Solution

The fourth proportional to 152,054.22, 209,828.70 and 88,387 is: 121,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,054.22 : 209,828.70 = 88,387 : x
  2. Step 2: Convert to fraction form
    152,054.22/209,828.70 = 88,387/x
  3. Step 3: Cross multiply
    152,054.22x = 209,828.70 × 88,387
  4. Step 4: Simplify right side
    152,054.22x = 18,546,129,306.90
  5. Step 5: Solve for x
    x = 18,546,129,306.90/152,054.22
  6. Step 6: Final answer
    x = 121,970.50

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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.