Home / 132,000.30-198,000.45-118,637.10

Finding the Fourth Proportional to 132,000.30, 198,000.45 and 118,637.10

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Solution

The fourth proportional to 132,000.30, 198,000.45 and 118,637.10 is: 177,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000.30 : 198,000.45 = 118,637.10 : x
  2. Step 2: Convert to fraction form
    132,000.30/198,000.45 = 118,637.10/x
  3. Step 3: Cross multiply
    132,000.30x = 198,000.45 × 118,637.10
  4. Step 4: Simplify right side
    132,000.30x = 23,490,199,186.70
  5. Step 5: Solve for x
    x = 23,490,199,186.70/132,000.30
  6. Step 6: Final answer
    x = 177,955.65

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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.