Home / 106,478.32-146,866.36-86,336.04

Finding the Fourth Proportional to 106,478.32, 146,866.36 and 86,336.04

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Solution

The fourth proportional to 106,478.32, 146,866.36 and 86,336.04 is: 119,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,478.32 : 146,866.36 = 86,336.04 : x
  2. Step 2: Convert to fraction form
    106,478.32/146,866.36 = 86,336.04/x
  3. Step 3: Cross multiply
    106,478.32x = 146,866.36 × 86,336.04
  4. Step 4: Simplify right side
    106,478.32x = 12,679,859,931.61
  5. Step 5: Solve for x
    x = 12,679,859,931.61/106,478.32
  6. Step 6: Final answer
    x = 119,083.96

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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.