Home / 187,142.45-280,638.95-108,312.03

Finding the Fourth Proportional to 187,142.45, 280,638.95 and 108,312.03

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Solution

The fourth proportional to 187,142.45, 280,638.95 and 108,312.03 is: 162,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.45 : 280,638.95 = 108,312.03 : x
  2. Step 2: Convert to fraction form
    187,142.45/280,638.95 = 108,312.03/x
  3. Step 3: Cross multiply
    187,142.45x = 280,638.95 × 108,312.03
  4. Step 4: Simplify right side
    187,142.45x = 30,396,573,830.01
  5. Step 5: Solve for x
    x = 30,396,573,830.01/187,142.45
  6. Step 6: Final answer
    x = 162,424.80

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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.