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Finding the Fourth Proportional to 139,024.80, 191,854.48 and 75,362.40

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Solution

The fourth proportional to 139,024.80, 191,854.48 and 75,362.40 is: 104,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,024.80 : 191,854.48 = 75,362.40 : x
  2. Step 2: Convert to fraction form
    139,024.80/191,854.48 = 75,362.40/x
  3. Step 3: Cross multiply
    139,024.80x = 191,854.48 × 75,362.40
  4. Step 4: Simplify right side
    139,024.80x = 14,458,614,063.55
  5. Step 5: Solve for x
    x = 14,458,614,063.55/139,024.80
  6. Step 6: Final answer
    x = 104,000.25

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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.