Home / 130,458.24-179,952.75-86,255.69

Finding the Fourth Proportional to 130,458.24, 179,952.75 and 86,255.69

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Solution

The fourth proportional to 130,458.24, 179,952.75 and 86,255.69 is: 118,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,458.24 : 179,952.75 = 86,255.69 : x
  2. Step 2: Convert to fraction form
    130,458.24/179,952.75 = 86,255.69/x
  3. Step 3: Cross multiply
    130,458.24x = 179,952.75 × 86,255.69
  4. Step 4: Simplify right side
    130,458.24x = 15,521,947,718.88
  5. Step 5: Solve for x
    x = 15,521,947,718.88/130,458.24
  6. Step 6: Final answer
    x = 118,980.20

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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.