Home / 187,210.80-280,816.20-54,095.40

Finding the Fourth Proportional to 187,210.80, 280,816.20 and 54,095.40

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Solution

The fourth proportional to 187,210.80, 280,816.20 and 54,095.40 is: 81,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,210.80 : 280,816.20 = 54,095.40 : x
  2. Step 2: Convert to fraction form
    187,210.80/280,816.20 = 54,095.40/x
  3. Step 3: Cross multiply
    187,210.80x = 280,816.20 × 54,095.40
  4. Step 4: Simplify right side
    187,210.80x = 15,190,864,665.48
  5. Step 5: Solve for x
    x = 15,190,864,665.48/187,210.80
  6. Step 6: Final answer
    x = 81,143.10

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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.