Home / 145,855.20-218,264.40-101,272.80

Finding the Fourth Proportional to 145,855.20, 218,264.40 and 101,272.80

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Solution

The fourth proportional to 145,855.20, 218,264.40 and 101,272.80 is: 151,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,855.20 : 218,264.40 = 101,272.80 : x
  2. Step 2: Convert to fraction form
    145,855.20/218,264.40 = 101,272.80/x
  3. Step 3: Cross multiply
    145,855.20x = 218,264.40 × 101,272.80
  4. Step 4: Simplify right side
    145,855.20x = 22,104,246,928.32
  5. Step 5: Solve for x
    x = 22,104,246,928.32/145,855.20
  6. Step 6: Final answer
    x = 151,549.26

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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.