Home / 136,303.80-204,387.94-86,346.04

Finding the Fourth Proportional to 136,303.80, 204,387.94 and 86,346.04

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Solution

The fourth proportional to 136,303.80, 204,387.94 and 86,346.04 is: 129,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,303.80 : 204,387.94 = 86,346.04 : x
  2. Step 2: Convert to fraction form
    136,303.80/204,387.94 = 86,346.04/x
  3. Step 3: Cross multiply
    136,303.80x = 204,387.94 × 86,346.04
  4. Step 4: Simplify right side
    136,303.80x = 17,648,089,242.76
  5. Step 5: Solve for x
    x = 17,648,089,242.76/136,303.80
  6. Step 6: Final answer
    x = 129,476.14

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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.