Home / 115,207.47-158,995.53-64,236.72

Finding the Fourth Proportional to 115,207.47, 158,995.53 and 64,236.72

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Solution

The fourth proportional to 115,207.47, 158,995.53 and 64,236.72 is: 88,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207.47 : 158,995.53 = 64,236.72 : x
  2. Step 2: Convert to fraction form
    115,207.47/158,995.53 = 64,236.72/x
  3. Step 3: Cross multiply
    115,207.47x = 158,995.53 × 64,236.72
  4. Step 4: Simplify right side
    115,207.47x = 10,213,351,341.86
  5. Step 5: Solve for x
    x = 10,213,351,341.86/115,207.47
  6. Step 6: Final answer
    x = 88,651.82

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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.