Home / 115,112.90-158,853.40-64,125.56

Finding the Fourth Proportional to 115,112.90, 158,853.40 and 64,125.56

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Solution

The fourth proportional to 115,112.90, 158,853.40 and 64,125.56 is: 88,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,112.90 : 158,853.40 = 64,125.56 : x
  2. Step 2: Convert to fraction form
    115,112.90/158,853.40 = 64,125.56/x
  3. Step 3: Cross multiply
    115,112.90x = 158,853.40 × 64,125.56
  4. Step 4: Simplify right side
    115,112.90x = 10,186,563,232.90
  5. Step 5: Solve for x
    x = 10,186,563,232.90/115,112.90
  6. Step 6: Final answer
    x = 88,491.93

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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.