Home / 157,478.20-236,217.30-155,145.40

Finding the Fourth Proportional to 157,478.20, 236,217.30 and 155,145.40

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Solution

The fourth proportional to 157,478.20, 236,217.30 and 155,145.40 is: 232,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,478.20 : 236,217.30 = 155,145.40 : x
  2. Step 2: Convert to fraction form
    157,478.20/236,217.30 = 155,145.40/x
  3. Step 3: Cross multiply
    157,478.20x = 236,217.30 × 155,145.40
  4. Step 4: Simplify right side
    157,478.20x = 36,648,027,495.42
  5. Step 5: Solve for x
    x = 36,648,027,495.42/157,478.20
  6. Step 6: Final answer
    x = 232,718.10

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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.