Home / 130,130.60-179,508.49-89,865.50

Finding the Fourth Proportional to 130,130.60, 179,508.49 and 89,865.50

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Solution

The fourth proportional to 130,130.60, 179,508.49 and 89,865.50 is: 123,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,130.60 : 179,508.49 = 89,865.50 : x
  2. Step 2: Convert to fraction form
    130,130.60/179,508.49 = 89,865.50/x
  3. Step 3: Cross multiply
    130,130.60x = 179,508.49 × 89,865.50
  4. Step 4: Simplify right side
    130,130.60x = 16,131,619,085.89
  5. Step 5: Solve for x
    x = 16,131,619,085.89/130,130.60
  6. Step 6: Final answer
    x = 123,964.85

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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.