Home / 130,921.60-196,252.80-64,307.20

Finding the Fourth Proportional to 130,921.60, 196,252.80 and 64,307.20

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Solution

The fourth proportional to 130,921.60, 196,252.80 and 64,307.20 is: 96,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,921.60 : 196,252.80 = 64,307.20 : x
  2. Step 2: Convert to fraction form
    130,921.60/196,252.80 = 64,307.20/x
  3. Step 3: Cross multiply
    130,921.60x = 196,252.80 × 64,307.20
  4. Step 4: Simplify right side
    130,921.60x = 12,620,468,060.16
  5. Step 5: Solve for x
    x = 12,620,468,060.16/130,921.60
  6. Step 6: Final answer
    x = 96,397.14

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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.