Home / 115,126.14-158,870.57-64,138.85

Finding the Fourth Proportional to 115,126.14, 158,870.57 and 64,138.85

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Solution

The fourth proportional to 115,126.14, 158,870.57 and 64,138.85 is: 88,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,126.14 : 158,870.57 = 64,138.85 : x
  2. Step 2: Convert to fraction form
    115,126.14/158,870.57 = 64,138.85/x
  3. Step 3: Cross multiply
    115,126.14x = 158,870.57 × 64,138.85
  4. Step 4: Simplify right side
    115,126.14x = 10,189,774,543.60
  5. Step 5: Solve for x
    x = 10,189,774,543.60/115,126.14
  6. Step 6: Final answer
    x = 88,509.65

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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.