Home / 147,319.22-221,088.89-99,821.70

Finding the Fourth Proportional to 147,319.22, 221,088.89 and 99,821.70

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Solution

The fourth proportional to 147,319.22, 221,088.89 and 99,821.70 is: 149,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,319.22 : 221,088.89 = 99,821.70 : x
  2. Step 2: Convert to fraction form
    147,319.22/221,088.89 = 99,821.70/x
  3. Step 3: Cross multiply
    147,319.22x = 221,088.89 × 99,821.70
  4. Step 4: Simplify right side
    147,319.22x = 22,069,469,100.47
  5. Step 5: Solve for x
    x = 22,069,469,100.47/147,319.22
  6. Step 6: Final answer
    x = 149,807.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.