Home / 99,011.55-136,689.03-76,467.23

Finding the Fourth Proportional to 99,011.55, 136,689.03 and 76,467.23

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Solution

The fourth proportional to 99,011.55, 136,689.03 and 76,467.23 is: 105,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011.55 : 136,689.03 = 76,467.23 : x
  2. Step 2: Convert to fraction form
    99,011.55/136,689.03 = 76,467.23/x
  3. Step 3: Cross multiply
    99,011.55x = 136,689.03 × 76,467.23
  4. Step 4: Simplify right side
    99,011.55x = 10,452,231,495.49
  5. Step 5: Solve for x
    x = 10,452,231,495.49/99,011.55
  6. Step 6: Final answer
    x = 105,565.78

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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.