Home / 130,148.64-179,752.68-87,633.36

Finding the Fourth Proportional to 130,148.64, 179,752.68 and 87,633.36

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Solution

The fourth proportional to 130,148.64, 179,752.68 and 87,633.36 is: 121,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,148.64 : 179,752.68 = 87,633.36 : x
  2. Step 2: Convert to fraction form
    130,148.64/179,752.68 = 87,633.36/x
  3. Step 3: Cross multiply
    130,148.64x = 179,752.68 × 87,633.36
  4. Step 4: Simplify right side
    130,148.64x = 15,752,331,317.40
  5. Step 5: Solve for x
    x = 15,752,331,317.40/130,148.64
  6. Step 6: Final answer
    x = 121,033.39

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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.