Home / 115,180.12-158,947.14-64,879.24

Finding the Fourth Proportional to 115,180.12, 158,947.14 and 64,879.24

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Solution

The fourth proportional to 115,180.12, 158,947.14 and 64,879.24 is: 89,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,180.12 : 158,947.14 = 64,879.24 : x
  2. Step 2: Convert to fraction form
    115,180.12/158,947.14 = 64,879.24/x
  3. Step 3: Cross multiply
    115,180.12x = 158,947.14 × 64,879.24
  4. Step 4: Simplify right side
    115,180.12x = 10,312,369,643.37
  5. Step 5: Solve for x
    x = 10,312,369,643.37/115,180.12
  6. Step 6: Final answer
    x = 89,532.55

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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.