Home / 103,270.40-142,543.68-60,842.64

Finding the Fourth Proportional to 103,270.40, 142,543.68 and 60,842.64

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Solution

The fourth proportional to 103,270.40, 142,543.68 and 60,842.64 is: 83,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,270.40 : 142,543.68 = 60,842.64 : x
  2. Step 2: Convert to fraction form
    103,270.40/142,543.68 = 60,842.64/x
  3. Step 3: Cross multiply
    103,270.40x = 142,543.68 × 60,842.64
  4. Step 4: Simplify right side
    103,270.40x = 8,672,733,806.52
  5. Step 5: Solve for x
    x = 8,672,733,806.52/103,270.40
  6. Step 6: Final answer
    x = 83,980.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.