Home / 98,748.16-136,269.12-54,035.20

Finding the Fourth Proportional to 98,748.16, 136,269.12 and 54,035.20

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Solution

The fourth proportional to 98,748.16, 136,269.12 and 54,035.20 is: 74,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.16 : 136,269.12 = 54,035.20 : x
  2. Step 2: Convert to fraction form
    98,748.16/136,269.12 = 54,035.20/x
  3. Step 3: Cross multiply
    98,748.16x = 136,269.12 × 54,035.20
  4. Step 4: Simplify right side
    98,748.16x = 7,363,329,153.02
  5. Step 5: Solve for x
    x = 7,363,329,153.02/98,748.16
  6. Step 6: Final answer
    x = 74,566.75

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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.