Home / 142,126.61-213,170.47-42,302.21

Finding the Fourth Proportional to 142,126.61, 213,170.47 and 42,302.21

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Solution

The fourth proportional to 142,126.61, 213,170.47 and 42,302.21 is: 63,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,126.61 : 213,170.47 = 42,302.21 : x
  2. Step 2: Convert to fraction form
    142,126.61/213,170.47 = 42,302.21/x
  3. Step 3: Cross multiply
    142,126.61x = 213,170.47 × 42,302.21
  4. Step 4: Simplify right side
    142,126.61x = 9,017,581,987.74
  5. Step 5: Solve for x
    x = 9,017,581,987.74/142,126.61
  6. Step 6: Final answer
    x = 63,447.53

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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.