Home / 147,872.20-221,808.30-59,139.40

Finding the Fourth Proportional to 147,872.20, 221,808.30 and 59,139.40

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Solution

The fourth proportional to 147,872.20, 221,808.30 and 59,139.40 is: 88,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,872.20 : 221,808.30 = 59,139.40 : x
  2. Step 2: Convert to fraction form
    147,872.20/221,808.30 = 59,139.40/x
  3. Step 3: Cross multiply
    147,872.20x = 221,808.30 × 59,139.40
  4. Step 4: Simplify right side
    147,872.20x = 13,117,609,777.02
  5. Step 5: Solve for x
    x = 13,117,609,777.02/147,872.20
  6. Step 6: Final answer
    x = 88,709.10

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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.