Home / 115,111.20-172,666.80-48,626.40

Finding the Fourth Proportional to 115,111.20, 172,666.80 and 48,626.40

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Solution

The fourth proportional to 115,111.20, 172,666.80 and 48,626.40 is: 72,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,111.20 : 172,666.80 = 48,626.40 : x
  2. Step 2: Convert to fraction form
    115,111.20/172,666.80 = 48,626.40/x
  3. Step 3: Cross multiply
    115,111.20x = 172,666.80 × 48,626.40
  4. Step 4: Simplify right side
    115,111.20x = 8,396,164,883.52
  5. Step 5: Solve for x
    x = 8,396,164,883.52/115,111.20
  6. Step 6: Final answer
    x = 72,939.60

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1.5x scale

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.