Home / 142,423.40-213,635.10-59,306.60

Finding the Fourth Proportional to 142,423.40, 213,635.10 and 59,306.60

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Solution

The fourth proportional to 142,423.40, 213,635.10 and 59,306.60 is: 88,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,423.40 : 213,635.10 = 59,306.60 : x
  2. Step 2: Convert to fraction form
    142,423.40/213,635.10 = 59,306.60/x
  3. Step 3: Cross multiply
    142,423.40x = 213,635.10 × 59,306.60
  4. Step 4: Simplify right side
    142,423.40x = 12,669,971,421.66
  5. Step 5: Solve for x
    x = 12,669,971,421.66/142,423.40
  6. Step 6: Final answer
    x = 88,959.90

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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.