Home / 147,613.60-221,420.40-136,208.80

Finding the Fourth Proportional to 147,613.60, 221,420.40 and 136,208.80

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Solution

The fourth proportional to 147,613.60, 221,420.40 and 136,208.80 is: 204,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,613.60 : 221,420.40 = 136,208.80 : x
  2. Step 2: Convert to fraction form
    147,613.60/221,420.40 = 136,208.80/x
  3. Step 3: Cross multiply
    147,613.60x = 221,420.40 × 136,208.80
  4. Step 4: Simplify right side
    147,613.60x = 30,159,406,979.52
  5. Step 5: Solve for x
    x = 30,159,406,979.52/147,613.60
  6. Step 6: Final answer
    x = 204,313.20

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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.