Home / 145,436.91-218,155.33-45,597.61

Finding the Fourth Proportional to 145,436.91, 218,155.33 and 45,597.61

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Solution

The fourth proportional to 145,436.91, 218,155.33 and 45,597.61 is: 68,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,436.91 : 218,155.33 = 45,597.61 : x
  2. Step 2: Convert to fraction form
    145,436.91/218,155.33 = 45,597.61/x
  3. Step 3: Cross multiply
    145,436.91x = 218,155.33 × 45,597.61
  4. Step 4: Simplify right side
    145,436.91x = 9,947,361,656.76
  5. Step 5: Solve for x
    x = 9,947,361,656.76/145,436.91
  6. Step 6: Final answer
    x = 68,396.40

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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.