Home / 130,238.47-179,722.97-72,885.07

Finding the Fourth Proportional to 130,238.47, 179,722.97 and 72,885.07

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Solution

The fourth proportional to 130,238.47, 179,722.97 and 72,885.07 is: 100,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,238.47 : 179,722.97 = 72,885.07 : x
  2. Step 2: Convert to fraction form
    130,238.47/179,722.97 = 72,885.07/x
  3. Step 3: Cross multiply
    130,238.47x = 179,722.97 × 72,885.07
  4. Step 4: Simplify right side
    130,238.47x = 13,099,121,382.61
  5. Step 5: Solve for x
    x = 13,099,121,382.61/130,238.47
  6. Step 6: Final answer
    x = 100,577.98

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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.