Home / 136,464.04-204,657.18-86,468.68

Finding the Fourth Proportional to 136,464.04, 204,657.18 and 86,468.68

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Solution

The fourth proportional to 136,464.04, 204,657.18 and 86,468.68 is: 129,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,464.04 : 204,657.18 = 86,468.68 : x
  2. Step 2: Convert to fraction form
    136,464.04/204,657.18 = 86,468.68/x
  3. Step 3: Cross multiply
    136,464.04x = 204,657.18 × 86,468.68
  4. Step 4: Simplify right side
    136,464.04x = 17,696,436,207.12
  5. Step 5: Solve for x
    x = 17,696,436,207.12/136,464.04
  6. Step 6: Final answer
    x = 129,678.38

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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.