Home / 103,824.60-155,736.90-101,856.30

Finding the Fourth Proportional to 103,824.60, 155,736.90 and 101,856.30

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Solution

The fourth proportional to 103,824.60, 155,736.90 and 101,856.30 is: 152,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,824.60 : 155,736.90 = 101,856.30 : x
  2. Step 2: Convert to fraction form
    103,824.60/155,736.90 = 101,856.30/x
  3. Step 3: Cross multiply
    103,824.60x = 155,736.90 × 101,856.30
  4. Step 4: Simplify right side
    103,824.60x = 15,862,784,407.47
  5. Step 5: Solve for x
    x = 15,862,784,407.47/103,824.60
  6. Step 6: Final answer
    x = 152,784.45

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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.