Home / 142,541.06-213,851.95-71,377.79

Finding the Fourth Proportional to 142,541.06, 213,851.95 and 71,377.79

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Solution

The fourth proportional to 142,541.06, 213,851.95 and 71,377.79 is: 107,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,541.06 : 213,851.95 = 71,377.79 : x
  2. Step 2: Convert to fraction form
    142,541.06/213,851.95 = 71,377.79/x
  3. Step 3: Cross multiply
    142,541.06x = 213,851.95 × 71,377.79
  4. Step 4: Simplify right side
    142,541.06x = 15,264,278,631.51
  5. Step 5: Solve for x
    x = 15,264,278,631.51/142,541.06
  6. Step 6: Final answer
    x = 107,086.89

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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.