Home / 109,488.16-151,102.88-61,751.44

Finding the Fourth Proportional to 109,488.16, 151,102.88 and 61,751.44

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Solution

The fourth proportional to 109,488.16, 151,102.88 and 61,751.44 is: 85,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,488.16 : 151,102.88 = 61,751.44 : x
  2. Step 2: Convert to fraction form
    109,488.16/151,102.88 = 61,751.44/x
  3. Step 3: Cross multiply
    109,488.16x = 151,102.88 × 61,751.44
  4. Step 4: Simplify right side
    109,488.16x = 9,330,820,428.15
  5. Step 5: Solve for x
    x = 9,330,820,428.15/109,488.16
  6. Step 6: Final answer
    x = 85,222.19

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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.