Home / 130,459.12-195,440.40-74,337.88

Finding the Fourth Proportional to 130,459.12, 195,440.40 and 74,337.88

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Solution

The fourth proportional to 130,459.12, 195,440.40 and 74,337.88 is: 111,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,459.12 : 195,440.40 = 74,337.88 : x
  2. Step 2: Convert to fraction form
    130,459.12/195,440.40 = 74,337.88/x
  3. Step 3: Cross multiply
    130,459.12x = 195,440.40 × 74,337.88
  4. Step 4: Simplify right side
    130,459.12x = 14,528,625,002.35
  5. Step 5: Solve for x
    x = 14,528,625,002.35/130,459.12
  6. Step 6: Final answer
    x = 111,365.35

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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.