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Finding the Fourth Proportional to 130,109.52, 179,652.90 and 99,846.90

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Solution

The fourth proportional to 130,109.52, 179,652.90 and 99,846.90 is: 137,866.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.52 : 179,652.90 = 99,846.90 : x
  2. Step 2: Convert to fraction form
    130,109.52/179,652.90 = 99,846.90/x
  3. Step 3: Cross multiply
    130,109.52x = 179,652.90 × 99,846.90
  4. Step 4: Simplify right side
    130,109.52x = 17,937,785,599.48
  5. Step 5: Solve for x
    x = 17,937,785,599.48/130,109.52
  6. Step 6: Final answer
    x = 137,866.82

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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.