Home / 120,047.04-165,672.16-86,065.92

Finding the Fourth Proportional to 120,047.04, 165,672.16 and 86,065.92

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Solution

The fourth proportional to 120,047.04, 165,672.16 and 86,065.92 is: 118,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,047.04 : 165,672.16 = 86,065.92 : x
  2. Step 2: Convert to fraction form
    120,047.04/165,672.16 = 86,065.92/x
  3. Step 3: Cross multiply
    120,047.04x = 165,672.16 × 86,065.92
  4. Step 4: Simplify right side
    120,047.04x = 14,258,726,868.79
  5. Step 5: Solve for x
    x = 14,258,726,868.79/120,047.04
  6. Step 6: Final answer
    x = 118,776.16

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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.