Home / 126,123.12-189,307.80-104,160.24

Finding the Fourth Proportional to 126,123.12, 189,307.80 and 104,160.24

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Solution

The fourth proportional to 126,123.12, 189,307.80 and 104,160.24 is: 156,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123.12 : 189,307.80 = 104,160.24 : x
  2. Step 2: Convert to fraction form
    126,123.12/189,307.80 = 104,160.24/x
  3. Step 3: Cross multiply
    126,123.12x = 189,307.80 × 104,160.24
  4. Step 4: Simplify right side
    126,123.12x = 19,718,345,881.87
  5. Step 5: Solve for x
    x = 19,718,345,881.87/126,123.12
  6. Step 6: Final answer
    x = 156,342.04

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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.