Home / 105,008.10-157,512.15-100,925.70

Finding the Fourth Proportional to 105,008.10, 157,512.15 and 100,925.70

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Solution

The fourth proportional to 105,008.10, 157,512.15 and 100,925.70 is: 151,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,008.10 : 157,512.15 = 100,925.70 : x
  2. Step 2: Convert to fraction form
    105,008.10/157,512.15 = 100,925.70/x
  3. Step 3: Cross multiply
    105,008.10x = 157,512.15 × 100,925.70
  4. Step 4: Simplify right side
    105,008.10x = 15,897,023,997.26
  5. Step 5: Solve for x
    x = 15,897,023,997.26/105,008.10
  6. Step 6: Final answer
    x = 151,388.55

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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.