Home / 148,639.40-205,108.80-88,199.62

Finding the Fourth Proportional to 148,639.40, 205,108.80 and 88,199.62

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Solution

The fourth proportional to 148,639.40, 205,108.80 and 88,199.62 is: 121,707.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,639.40 : 205,108.80 = 88,199.62 : x
  2. Step 2: Convert to fraction form
    148,639.40/205,108.80 = 88,199.62/x
  3. Step 3: Cross multiply
    148,639.40x = 205,108.80 × 88,199.62
  4. Step 4: Simplify right side
    148,639.40x = 18,090,518,218.66
  5. Step 5: Solve for x
    x = 18,090,518,218.66/148,639.40
  6. Step 6: Final answer
    x = 121,707.42

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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.