Home / 102,081.04-152,921.88-66,913.36

Finding the Fourth Proportional to 102,081.04, 152,921.88 and 66,913.36

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Solution

The fourth proportional to 102,081.04, 152,921.88 and 66,913.36 is: 100,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,081.04 : 152,921.88 = 66,913.36 : x
  2. Step 2: Convert to fraction form
    102,081.04/152,921.88 = 66,913.36/x
  3. Step 3: Cross multiply
    102,081.04x = 152,921.88 × 66,913.36
  4. Step 4: Simplify right side
    102,081.04x = 10,232,516,808.32
  5. Step 5: Solve for x
    x = 10,232,516,808.32/102,081.04
  6. Step 6: Final answer
    x = 100,239.15

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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.