Home / 98,680.52-136,170.60-55,657.64

Finding the Fourth Proportional to 98,680.52, 136,170.60 and 55,657.64

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Solution

The fourth proportional to 98,680.52, 136,170.60 and 55,657.64 is: 76,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,680.52 : 136,170.60 = 55,657.64 : x
  2. Step 2: Convert to fraction form
    98,680.52/136,170.60 = 55,657.64/x
  3. Step 3: Cross multiply
    98,680.52x = 136,170.60 × 55,657.64
  4. Step 4: Simplify right side
    98,680.52x = 7,578,934,233.38
  5. Step 5: Solve for x
    x = 7,578,934,233.38/98,680.52
  6. Step 6: Final answer
    x = 76,802.74

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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.