Home / 130,217.83-179,709.51-72,862.59

Finding the Fourth Proportional to 130,217.83, 179,709.51 and 72,862.59

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Solution

The fourth proportional to 130,217.83, 179,709.51 and 72,862.59 is: 100,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,217.83 : 179,709.51 = 72,862.59 : x
  2. Step 2: Convert to fraction form
    130,217.83/179,709.51 = 72,862.59/x
  3. Step 3: Cross multiply
    130,217.83x = 179,709.51 × 72,862.59
  4. Step 4: Simplify right side
    130,217.83x = 13,094,100,077.58
  5. Step 5: Solve for x
    x = 13,094,100,077.58/130,217.83
  6. Step 6: Final answer
    x = 100,555.36

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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.