Home / 115,121.84-158,874.36-64,825.52

Finding the Fourth Proportional to 115,121.84, 158,874.36 and 64,825.52

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Solution

The fourth proportional to 115,121.84, 158,874.36 and 64,825.52 is: 89,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,121.84 : 158,874.36 = 64,825.52 : x
  2. Step 2: Convert to fraction form
    115,121.84/158,874.36 = 64,825.52/x
  3. Step 3: Cross multiply
    115,121.84x = 158,874.36 × 64,825.52
  4. Step 4: Simplify right side
    115,121.84x = 10,299,113,001.67
  5. Step 5: Solve for x
    x = 10,299,113,001.67/115,121.84
  6. Step 6: Final answer
    x = 89,462.72

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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.