Home / 149,756.04-206,708.22-89,368.92

Finding the Fourth Proportional to 149,756.04, 206,708.22 and 89,368.92

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Solution

The fourth proportional to 149,756.04, 206,708.22 and 89,368.92 is: 123,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,756.04 : 206,708.22 = 89,368.92 : x
  2. Step 2: Convert to fraction form
    149,756.04/206,708.22 = 89,368.92/x
  3. Step 3: Cross multiply
    149,756.04x = 206,708.22 × 89,368.92
  4. Step 4: Simplify right side
    149,756.04x = 18,473,290,376.52
  5. Step 5: Solve for x
    x = 18,473,290,376.52/149,756.04
  6. Step 6: Final answer
    x = 123,355.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.