Home / 92,883.65-128,190.38-55,157.90

Finding the Fourth Proportional to 92,883.65, 128,190.38 and 55,157.90

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Solution

The fourth proportional to 92,883.65, 128,190.38 and 55,157.90 is: 76,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,883.65 : 128,190.38 = 55,157.90 : x
  2. Step 2: Convert to fraction form
    92,883.65/128,190.38 = 55,157.90/x
  3. Step 3: Cross multiply
    92,883.65x = 128,190.38 × 55,157.90
  4. Step 4: Simplify right side
    92,883.65x = 7,070,711,244.26
  5. Step 5: Solve for x
    x = 7,070,711,244.26/92,883.65
  6. Step 6: Final answer
    x = 76,124.39

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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.