Home / 103,500.40-155,250.60-88,738.15

Finding the Fourth Proportional to 103,500.40, 155,250.60 and 88,738.15

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Solution

The fourth proportional to 103,500.40, 155,250.60 and 88,738.15 is: 133,107.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,500.40 : 155,250.60 = 88,738.15 : x
  2. Step 2: Convert to fraction form
    103,500.40/155,250.60 = 88,738.15/x
  3. Step 3: Cross multiply
    103,500.40x = 155,250.60 × 88,738.15
  4. Step 4: Simplify right side
    103,500.40x = 13,776,651,030.39
  5. Step 5: Solve for x
    x = 13,776,651,030.39/103,500.40
  6. Step 6: Final answer
    x = 133,107.23

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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.