Home / 170,442.16-255,380.76-103,680.40

Finding the Fourth Proportional to 170,442.16, 255,380.76 and 103,680.40

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Solution

The fourth proportional to 170,442.16, 255,380.76 and 103,680.40 is: 155,348.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,442.16 : 255,380.76 = 103,680.40 : x
  2. Step 2: Convert to fraction form
    170,442.16/255,380.76 = 103,680.40/x
  3. Step 3: Cross multiply
    170,442.16x = 255,380.76 × 103,680.40
  4. Step 4: Simplify right side
    170,442.16x = 26,477,979,349.10
  5. Step 5: Solve for x
    x = 26,477,979,349.10/170,442.16
  6. Step 6: Final answer
    x = 155,348.77

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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.