Home / 130,067.08-179,488.80-72,706.50

Finding the Fourth Proportional to 130,067.08, 179,488.80 and 72,706.50

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Solution

The fourth proportional to 130,067.08, 179,488.80 and 72,706.50 is: 100,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,067.08 : 179,488.80 = 72,706.50 : x
  2. Step 2: Convert to fraction form
    130,067.08/179,488.80 = 72,706.50/x
  3. Step 3: Cross multiply
    130,067.08x = 179,488.80 × 72,706.50
  4. Step 4: Simplify right side
    130,067.08x = 13,050,002,437.20
  5. Step 5: Solve for x
    x = 13,050,002,437.20/130,067.08
  6. Step 6: Final answer
    x = 100,332.86

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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.