Home / 142,125.95-213,300.30-99,151.91

Finding the Fourth Proportional to 142,125.95, 213,300.30 and 99,151.91

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Solution

The fourth proportional to 142,125.95, 213,300.30 and 99,151.91 is: 148,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,125.95 : 213,300.30 = 99,151.91 : x
  2. Step 2: Convert to fraction form
    142,125.95/213,300.30 = 99,151.91/x
  3. Step 3: Cross multiply
    142,125.95x = 213,300.30 × 99,151.91
  4. Step 4: Simplify right side
    142,125.95x = 21,149,132,148.57
  5. Step 5: Solve for x
    x = 21,149,132,148.57/142,125.95
  6. Step 6: Final answer
    x = 148,805.56

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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.