Home / 142,213.80-213,320.68-42,371.40

Finding the Fourth Proportional to 142,213.80, 213,320.68 and 42,371.40

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Solution

The fourth proportional to 142,213.80, 213,320.68 and 42,371.40 is: 63,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,213.80 : 213,320.68 = 42,371.40 : x
  2. Step 2: Convert to fraction form
    142,213.80/213,320.68 = 42,371.40/x
  3. Step 3: Cross multiply
    142,213.80x = 213,320.68 × 42,371.40
  4. Step 4: Simplify right side
    142,213.80x = 9,038,695,860.55
  5. Step 5: Solve for x
    x = 9,038,695,860.55/142,213.80
  6. Step 6: Final answer
    x = 63,557.09

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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.