Home / 130,986.40-196,479.60-61,002.40

Finding the Fourth Proportional to 130,986.40, 196,479.60 and 61,002.40

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Solution

The fourth proportional to 130,986.40, 196,479.60 and 61,002.40 is: 91,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,986.40 : 196,479.60 = 61,002.40 : x
  2. Step 2: Convert to fraction form
    130,986.40/196,479.60 = 61,002.40/x
  3. Step 3: Cross multiply
    130,986.40x = 196,479.60 × 61,002.40
  4. Step 4: Simplify right side
    130,986.40x = 11,985,727,151.04
  5. Step 5: Solve for x
    x = 11,985,727,151.04/130,986.40
  6. Step 6: Final answer
    x = 91,503.60

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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.