Home / 194,865.80-292,298.70-100,387.40

Finding the Fourth Proportional to 194,865.80, 292,298.70 and 100,387.40

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Solution

The fourth proportional to 194,865.80, 292,298.70 and 100,387.40 is: 150,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,865.80 : 292,298.70 = 100,387.40 : x
  2. Step 2: Convert to fraction form
    194,865.80/292,298.70 = 100,387.40/x
  3. Step 3: Cross multiply
    194,865.80x = 292,298.70 × 100,387.40
  4. Step 4: Simplify right side
    194,865.80x = 29,343,106,516.38
  5. Step 5: Solve for x
    x = 29,343,106,516.38/194,865.80
  6. Step 6: Final answer
    x = 150,581.10

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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.