Home / 130,306.08-179,807.22-72,948.54

Finding the Fourth Proportional to 130,306.08, 179,807.22 and 72,948.54

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Solution

The fourth proportional to 130,306.08, 179,807.22 and 72,948.54 is: 100,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,306.08 : 179,807.22 = 72,948.54 : x
  2. Step 2: Convert to fraction form
    130,306.08/179,807.22 = 72,948.54/x
  3. Step 3: Cross multiply
    130,306.08x = 179,807.22 × 72,948.54
  4. Step 4: Simplify right side
    130,306.08x = 13,116,674,180.46
  5. Step 5: Solve for x
    x = 13,116,674,180.46/130,306.08
  6. Step 6: Final answer
    x = 100,660.49

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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.