Home / 196,980.32-271,358.70-156,681.20

Finding the Fourth Proportional to 196,980.32, 271,358.70 and 156,681.20

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Solution

The fourth proportional to 196,980.32, 271,358.70 and 156,681.20 is: 215,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,980.32 : 271,358.70 = 156,681.20 : x
  2. Step 2: Convert to fraction form
    196,980.32/271,358.70 = 156,681.20/x
  3. Step 3: Cross multiply
    196,980.32x = 271,358.70 × 156,681.20
  4. Step 4: Simplify right side
    196,980.32x = 42,516,806,746.44
  5. Step 5: Solve for x
    x = 42,516,806,746.44/196,980.32
  6. Step 6: Final answer
    x = 215,842.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.