Home / 115,166.16-158,844.70-76,333.76

Finding the Fourth Proportional to 115,166.16, 158,844.70 and 76,333.76

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Solution

The fourth proportional to 115,166.16, 158,844.70 and 76,333.76 is: 105,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,166.16 : 158,844.70 = 76,333.76 : x
  2. Step 2: Convert to fraction form
    115,166.16/158,844.70 = 76,333.76/x
  3. Step 3: Cross multiply
    115,166.16x = 158,844.70 × 76,333.76
  4. Step 4: Simplify right side
    115,166.16x = 12,125,213,207.07
  5. Step 5: Solve for x
    x = 12,125,213,207.07/115,166.16
  6. Step 6: Final answer
    x = 105,284.51

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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.