Home / 142,129.51-213,191.33-47,366.57

Finding the Fourth Proportional to 142,129.51, 213,191.33 and 47,366.57

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Solution

The fourth proportional to 142,129.51, 213,191.33 and 47,366.57 is: 71,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,129.51 : 213,191.33 = 47,366.57 : x
  2. Step 2: Convert to fraction form
    142,129.51/213,191.33 = 47,366.57/x
  3. Step 3: Cross multiply
    142,129.51x = 213,191.33 × 47,366.57
  4. Step 4: Simplify right side
    142,129.51x = 10,098,142,055.84
  5. Step 5: Solve for x
    x = 10,098,142,055.84/142,129.51
  6. Step 6: Final answer
    x = 71,048.88

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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.