Home / 140,053.12-193,275.60-76,390.92

Finding the Fourth Proportional to 140,053.12, 193,275.60 and 76,390.92

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Solution

The fourth proportional to 140,053.12, 193,275.60 and 76,390.92 is: 105,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,053.12 : 193,275.60 = 76,390.92 : x
  2. Step 2: Convert to fraction form
    140,053.12/193,275.60 = 76,390.92/x
  3. Step 3: Cross multiply
    140,053.12x = 193,275.60 × 76,390.92
  4. Step 4: Simplify right side
    140,053.12x = 14,764,500,897.55
  5. Step 5: Solve for x
    x = 14,764,500,897.55/140,053.12
  6. Step 6: Final answer
    x = 105,420.72

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1.5x scale

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.