Home / 147,319.97-221,045.56-77,182.88

Finding the Fourth Proportional to 147,319.97, 221,045.56 and 77,182.88

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Solution

The fourth proportional to 147,319.97, 221,045.56 and 77,182.88 is: 115,808.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,319.97 : 221,045.56 = 77,182.88 : x
  2. Step 2: Convert to fraction form
    147,319.97/221,045.56 = 77,182.88/x
  3. Step 3: Cross multiply
    147,319.97x = 221,045.56 × 77,182.88
  4. Step 4: Simplify right side
    147,319.97x = 17,060,931,633.83
  5. Step 5: Solve for x
    x = 17,060,931,633.83/147,319.97
  6. Step 6: Final answer
    x = 115,808.69

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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.