Home / 130,275.19-179,767.06-72,911.09

Finding the Fourth Proportional to 130,275.19, 179,767.06 and 72,911.09

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Solution

The fourth proportional to 130,275.19, 179,767.06 and 72,911.09 is: 100,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,275.19 : 179,767.06 = 72,911.09 : x
  2. Step 2: Convert to fraction form
    130,275.19/179,767.06 = 72,911.09/x
  3. Step 3: Cross multiply
    130,275.19x = 179,767.06 × 72,911.09
  4. Step 4: Simplify right side
    130,275.19x = 13,107,012,290.70
  5. Step 5: Solve for x
    x = 13,107,012,290.70/130,275.19
  6. Step 6: Final answer
    x = 100,610.20

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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.