Home / 97,411.20-146,116.80-86,585.55

Finding the Fourth Proportional to 97,411.20, 146,116.80 and 86,585.55

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Solution

The fourth proportional to 97,411.20, 146,116.80 and 86,585.55 is: 129,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,411.20 : 146,116.80 = 86,585.55 : x
  2. Step 2: Convert to fraction form
    97,411.20/146,116.80 = 86,585.55/x
  3. Step 3: Cross multiply
    97,411.20x = 146,116.80 × 86,585.55
  4. Step 4: Simplify right side
    97,411.20x = 12,651,603,492.24
  5. Step 5: Solve for x
    x = 12,651,603,492.24/97,411.20
  6. Step 6: Final answer
    x = 129,878.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.