Home / 86,737.32-119,631.46-74,658.36

Finding the Fourth Proportional to 86,737.32, 119,631.46 and 74,658.36

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Solution

The fourth proportional to 86,737.32, 119,631.46 and 74,658.36 is: 102,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,737.32 : 119,631.46 = 74,658.36 : x
  2. Step 2: Convert to fraction form
    86,737.32/119,631.46 = 74,658.36/x
  3. Step 3: Cross multiply
    86,737.32x = 119,631.46 × 74,658.36
  4. Step 4: Simplify right side
    86,737.32x = 8,931,488,608.01
  5. Step 5: Solve for x
    x = 8,931,488,608.01/86,737.32
  6. Step 6: Final answer
    x = 102,971.69

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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.