Home / 147,615.20-221,444.40-77,499.80

Finding the Fourth Proportional to 147,615.20, 221,444.40 and 77,499.80

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Solution

The fourth proportional to 147,615.20, 221,444.40 and 77,499.80 is: 116,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,615.20 : 221,444.40 = 77,499.80 : x
  2. Step 2: Convert to fraction form
    147,615.20/221,444.40 = 77,499.80/x
  3. Step 3: Cross multiply
    147,615.20x = 221,444.40 × 77,499.80
  4. Step 4: Simplify right side
    147,615.20x = 17,161,896,711.12
  5. Step 5: Solve for x
    x = 17,161,896,711.12/147,615.20
  6. Step 6: Final answer
    x = 116,261.04

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1.5x scale

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.