Home / 130,868.16-196,321.68-42,098.64

Finding the Fourth Proportional to 130,868.16, 196,321.68 and 42,098.64

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Solution

The fourth proportional to 130,868.16, 196,321.68 and 42,098.64 is: 63,154.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,868.16 : 196,321.68 = 42,098.64 : x
  2. Step 2: Convert to fraction form
    130,868.16/196,321.68 = 42,098.64/x
  3. Step 3: Cross multiply
    130,868.16x = 196,321.68 × 42,098.64
  4. Step 4: Simplify right side
    130,868.16x = 8,264,875,730.52
  5. Step 5: Solve for x
    x = 8,264,875,730.52/130,868.16
  6. Step 6: Final answer
    x = 63,154.21

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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.