Home / 130,029.30-179,437.68-72,669.15

Finding the Fourth Proportional to 130,029.30, 179,437.68 and 72,669.15

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Solution

The fourth proportional to 130,029.30, 179,437.68 and 72,669.15 is: 100,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,029.30 : 179,437.68 = 72,669.15 : x
  2. Step 2: Convert to fraction form
    130,029.30/179,437.68 = 72,669.15/x
  3. Step 3: Cross multiply
    130,029.30x = 179,437.68 × 72,669.15
  4. Step 4: Simplify right side
    130,029.30x = 13,039,583,683.57
  5. Step 5: Solve for x
    x = 13,039,583,683.57/130,029.30
  6. Step 6: Final answer
    x = 100,281.89

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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.