Home / 142,478.30-213,717.45-140,404.70

Finding the Fourth Proportional to 142,478.30, 213,717.45 and 140,404.70

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Solution

The fourth proportional to 142,478.30, 213,717.45 and 140,404.70 is: 210,607.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,478.30 : 213,717.45 = 140,404.70 : x
  2. Step 2: Convert to fraction form
    142,478.30/213,717.45 = 140,404.70/x
  3. Step 3: Cross multiply
    142,478.30x = 213,717.45 × 140,404.70
  4. Step 4: Simplify right side
    142,478.30x = 30,006,934,452.02
  5. Step 5: Solve for x
    x = 30,006,934,452.02/142,478.30
  6. Step 6: Final answer
    x = 210,607.05

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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.