Home / 98,158.15-135,458.90-55,717.39

Finding the Fourth Proportional to 98,158.15, 135,458.90 and 55,717.39

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Solution

The fourth proportional to 98,158.15, 135,458.90 and 55,717.39 is: 76,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.15 : 135,458.90 = 55,717.39 : x
  2. Step 2: Convert to fraction form
    98,158.15/135,458.90 = 55,717.39/x
  3. Step 3: Cross multiply
    98,158.15x = 135,458.90 × 55,717.39
  4. Step 4: Simplify right side
    98,158.15x = 7,547,416,360.27
  5. Step 5: Solve for x
    x = 7,547,416,360.27/98,158.15
  6. Step 6: Final answer
    x = 76,890.37

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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.