Home / 115,130.16-172,680.12-36,244.80

Finding the Fourth Proportional to 115,130.16, 172,680.12 and 36,244.80

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Solution

The fourth proportional to 115,130.16, 172,680.12 and 36,244.80 is: 54,362.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,130.16 : 172,680.12 = 36,244.80 : x
  2. Step 2: Convert to fraction form
    115,130.16/172,680.12 = 36,244.80/x
  3. Step 3: Cross multiply
    115,130.16x = 172,680.12 × 36,244.80
  4. Step 4: Simplify right side
    115,130.16x = 6,258,756,413.38
  5. Step 5: Solve for x
    x = 6,258,756,413.38/115,130.16
  6. Step 6: Final answer
    x = 54,362.44

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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.