Home / 99,445.68-137,285.82-76,733.64

Finding the Fourth Proportional to 99,445.68, 137,285.82 and 76,733.64

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Solution

The fourth proportional to 99,445.68, 137,285.82 and 76,733.64 is: 105,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,445.68 : 137,285.82 = 76,733.64 : x
  2. Step 2: Convert to fraction form
    99,445.68/137,285.82 = 76,733.64/x
  3. Step 3: Cross multiply
    99,445.68x = 137,285.82 × 76,733.64
  4. Step 4: Simplify right side
    99,445.68x = 10,534,440,688.98
  5. Step 5: Solve for x
    x = 10,534,440,688.98/99,445.68
  6. Step 6: Final answer
    x = 105,931.61

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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.