Home / 99,112.40-136,775.17-53,790.37

Finding the Fourth Proportional to 99,112.40, 136,775.17 and 53,790.37

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Solution

The fourth proportional to 99,112.40, 136,775.17 and 53,790.37 is: 74,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.40 : 136,775.17 = 53,790.37 : x
  2. Step 2: Convert to fraction form
    99,112.40/136,775.17 = 53,790.37/x
  3. Step 3: Cross multiply
    99,112.40x = 136,775.17 × 53,790.37
  4. Step 4: Simplify right side
    99,112.40x = 7,357,187,001.11
  5. Step 5: Solve for x
    x = 7,357,187,001.11/99,112.40
  6. Step 6: Final answer
    x = 74,230.74

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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.