Home / 105,008.28-157,512.36-31,136.28

Finding the Fourth Proportional to 105,008.28, 157,512.36 and 31,136.28

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Solution

The fourth proportional to 105,008.28, 157,512.36 and 31,136.28 is: 46,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,008.28 : 157,512.36 = 31,136.28 : x
  2. Step 2: Convert to fraction form
    105,008.28/157,512.36 = 31,136.28/x
  3. Step 3: Cross multiply
    105,008.28x = 157,512.36 × 31,136.28
  4. Step 4: Simplify right side
    105,008.28x = 4,904,348,944.42
  5. Step 5: Solve for x
    x = 4,904,348,944.42/105,008.28
  6. Step 6: Final answer
    x = 46,704.40

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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.