Home / 98,748.12-136,272.18-54,036.12

Finding the Fourth Proportional to 98,748.12, 136,272.18 and 54,036.12

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Solution

The fourth proportional to 98,748.12, 136,272.18 and 54,036.12 is: 74,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.12 : 136,272.18 = 54,036.12 : x
  2. Step 2: Convert to fraction form
    98,748.12/136,272.18 = 54,036.12/x
  3. Step 3: Cross multiply
    98,748.12x = 136,272.18 × 54,036.12
  4. Step 4: Simplify right side
    98,748.12x = 7,363,619,871.14
  5. Step 5: Solve for x
    x = 7,363,619,871.14/98,748.12
  6. Step 6: Final answer
    x = 74,569.72

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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.