Home / 130,346.38-179,836.16-72,977.24

Finding the Fourth Proportional to 130,346.38, 179,836.16 and 72,977.24

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Solution

The fourth proportional to 130,346.38, 179,836.16 and 72,977.24 is: 100,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,346.38 : 179,836.16 = 72,977.24 : x
  2. Step 2: Convert to fraction form
    130,346.38/179,836.16 = 72,977.24/x
  3. Step 3: Cross multiply
    130,346.38x = 179,836.16 × 72,977.24
  4. Step 4: Simplify right side
    130,346.38x = 13,123,946,609.00
  5. Step 5: Solve for x
    x = 13,123,946,609.00/130,346.38
  6. Step 6: Final answer
    x = 100,685.16

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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.