Home / 97,420.20-146,130.30-86,594.55

Finding the Fourth Proportional to 97,420.20, 146,130.30 and 86,594.55

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Solution

The fourth proportional to 97,420.20, 146,130.30 and 86,594.55 is: 129,891.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,420.20 : 146,130.30 = 86,594.55 : x
  2. Step 2: Convert to fraction form
    97,420.20/146,130.30 = 86,594.55/x
  3. Step 3: Cross multiply
    97,420.20x = 146,130.30 × 86,594.55
  4. Step 4: Simplify right side
    97,420.20x = 12,654,087,569.87
  5. Step 5: Solve for x
    x = 12,654,087,569.87/97,420.20
  6. Step 6: Final answer
    x = 129,891.83

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1.5x scale

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.