Home / 129,097.20-193,386.60-89,698.80

Finding the Fourth Proportional to 129,097.20, 193,386.60 and 89,698.80

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Solution

The fourth proportional to 129,097.20, 193,386.60 and 89,698.80 is: 134,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,097.20 : 193,386.60 = 89,698.80 : x
  2. Step 2: Convert to fraction form
    129,097.20/193,386.60 = 89,698.80/x
  3. Step 3: Cross multiply
    129,097.20x = 193,386.60 × 89,698.80
  4. Step 4: Simplify right side
    129,097.20x = 17,346,545,956.08
  5. Step 5: Solve for x
    x = 17,346,545,956.08/129,097.20
  6. Step 6: Final answer
    x = 134,368.10

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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.