Home / 142,125.11-213,168.23-42,300.71

Finding the Fourth Proportional to 142,125.11, 213,168.23 and 42,300.71

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Solution

The fourth proportional to 142,125.11, 213,168.23 and 42,300.71 is: 63,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,125.11 : 213,168.23 = 42,300.71 : x
  2. Step 2: Convert to fraction form
    142,125.11/213,168.23 = 42,300.71/x
  3. Step 3: Cross multiply
    142,125.11x = 213,168.23 × 42,300.71
  4. Step 4: Simplify right side
    142,125.11x = 9,017,167,266.94
  5. Step 5: Solve for x
    x = 9,017,167,266.94/142,125.11
  6. Step 6: Final answer
    x = 63,445.28

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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.