Home / 114,990.42-158,759.69-78,752.64

Finding the Fourth Proportional to 114,990.42, 158,759.69 and 78,752.64

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Solution

The fourth proportional to 114,990.42, 158,759.69 and 78,752.64 is: 108,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,990.42 : 158,759.69 = 78,752.64 : x
  2. Step 2: Convert to fraction form
    114,990.42/158,759.69 = 78,752.64/x
  3. Step 3: Cross multiply
    114,990.42x = 158,759.69 × 78,752.64
  4. Step 4: Simplify right side
    114,990.42x = 12,502,744,319.32
  5. Step 5: Solve for x
    x = 12,502,744,319.32/114,990.42
  6. Step 6: Final answer
    x = 108,728.57

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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.