Home / 99,437.04-137,063.80-67,161.56

Finding the Fourth Proportional to 99,437.04, 137,063.80 and 67,161.56

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Solution

The fourth proportional to 99,437.04, 137,063.80 and 67,161.56 is: 92,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,437.04 : 137,063.80 = 67,161.56 : x
  2. Step 2: Convert to fraction form
    99,437.04/137,063.80 = 67,161.56/x
  3. Step 3: Cross multiply
    99,437.04x = 137,063.80 × 67,161.56
  4. Step 4: Simplify right side
    99,437.04x = 9,205,417,648.38
  5. Step 5: Solve for x
    x = 9,205,417,648.38/99,437.04
  6. Step 6: Final answer
    x = 92,575.34

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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.