Home / 106,502.04-146,836.40-87,312.33

Finding the Fourth Proportional to 106,502.04, 146,836.40 and 87,312.33

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Solution

The fourth proportional to 106,502.04, 146,836.40 and 87,312.33 is: 120,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,502.04 : 146,836.40 = 87,312.33 : x
  2. Step 2: Convert to fraction form
    106,502.04/146,836.40 = 87,312.33/x
  3. Step 3: Cross multiply
    106,502.04x = 146,836.40 × 87,312.33
  4. Step 4: Simplify right side
    106,502.04x = 12,820,627,776.25
  5. Step 5: Solve for x
    x = 12,820,627,776.25/106,502.04
  6. Step 6: Final answer
    x = 120,379.18

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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.