Home / 130,262.31-179,765.21-72,901.18

Finding the Fourth Proportional to 130,262.31, 179,765.21 and 72,901.18

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Solution

The fourth proportional to 130,262.31, 179,765.21 and 72,901.18 is: 100,605.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,262.31 : 179,765.21 = 72,901.18 : x
  2. Step 2: Convert to fraction form
    130,262.31/179,765.21 = 72,901.18/x
  3. Step 3: Cross multiply
    130,262.31x = 179,765.21 × 72,901.18
  4. Step 4: Simplify right side
    130,262.31x = 13,105,095,118.03
  5. Step 5: Solve for x
    x = 13,105,095,118.03/130,262.31
  6. Step 6: Final answer
    x = 100,605.43

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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.