Home / 98,911.35-136,445.13-74,998.53

Finding the Fourth Proportional to 98,911.35, 136,445.13 and 74,998.53

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Solution

The fourth proportional to 98,911.35, 136,445.13 and 74,998.53 is: 103,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,911.35 : 136,445.13 = 74,998.53 : x
  2. Step 2: Convert to fraction form
    98,911.35/136,445.13 = 74,998.53/x
  3. Step 3: Cross multiply
    98,911.35x = 136,445.13 × 74,998.53
  4. Step 4: Simplify right side
    98,911.35x = 10,233,184,175.66
  5. Step 5: Solve for x
    x = 10,233,184,175.66/98,911.35
  6. Step 6: Final answer
    x = 103,458.14

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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.