Home / 130,283.97-179,710-100,023.18

Finding the Fourth Proportional to 130,283.97, 179,710 and 100,023.18

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Solution

The fourth proportional to 130,283.97, 179,710 and 100,023.18 is: 137,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,283.97 : 179,710 = 100,023.18 : x
  2. Step 2: Convert to fraction form
    130,283.97/179,710 = 100,023.18/x
  3. Step 3: Cross multiply
    130,283.97x = 179,710 × 100,023.18
  4. Step 4: Simplify right side
    130,283.97x = 17,975,165,677.80
  5. Step 5: Solve for x
    x = 17,975,165,677.80/130,283.97
  6. Step 6: Final answer
    x = 137,969.13

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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.