Home / 147,539.60-221,381.40-68,613.20

Finding the Fourth Proportional to 147,539.60, 221,381.40 and 68,613.20

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Solution

The fourth proportional to 147,539.60, 221,381.40 and 68,613.20 is: 102,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,539.60 : 221,381.40 = 68,613.20 : x
  2. Step 2: Convert to fraction form
    147,539.60/221,381.40 = 68,613.20/x
  3. Step 3: Cross multiply
    147,539.60x = 221,381.40 × 68,613.20
  4. Step 4: Simplify right side
    147,539.60x = 15,189,686,274.48
  5. Step 5: Solve for x
    x = 15,189,686,274.48/147,539.60
  6. Step 6: Final answer
    x = 102,953.28

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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.