Home / 132,614.50-183,012.10-72,189.20

Finding the Fourth Proportional to 132,614.50, 183,012.10 and 72,189.20

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Solution

The fourth proportional to 132,614.50, 183,012.10 and 72,189.20 is: 99,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,614.50 : 183,012.10 = 72,189.20 : x
  2. Step 2: Convert to fraction form
    132,614.50/183,012.10 = 72,189.20/x
  3. Step 3: Cross multiply
    132,614.50x = 183,012.10 × 72,189.20
  4. Step 4: Simplify right side
    132,614.50x = 13,211,497,089.32
  5. Step 5: Solve for x
    x = 13,211,497,089.32/132,614.50
  6. Step 6: Final answer
    x = 99,623.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.