Home / 142,407.28-213,399.68-58,064.40

Finding the Fourth Proportional to 142,407.28, 213,399.68 and 58,064.40

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Solution

The fourth proportional to 142,407.28, 213,399.68 and 58,064.40 is: 87,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,407.28 : 213,399.68 = 58,064.40 : x
  2. Step 2: Convert to fraction form
    142,407.28/213,399.68 = 58,064.40/x
  3. Step 3: Cross multiply
    142,407.28x = 213,399.68 × 58,064.40
  4. Step 4: Simplify right side
    142,407.28x = 12,390,924,379.39
  5. Step 5: Solve for x
    x = 12,390,924,379.39/142,407.28
  6. Step 6: Final answer
    x = 87,010.47

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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.