Home / 99,434.12-137,219.67-54,112.46

Finding the Fourth Proportional to 99,434.12, 137,219.67 and 54,112.46

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Solution

The fourth proportional to 99,434.12, 137,219.67 and 54,112.46 is: 74,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,434.12 : 137,219.67 = 54,112.46 : x
  2. Step 2: Convert to fraction form
    99,434.12/137,219.67 = 54,112.46/x
  3. Step 3: Cross multiply
    99,434.12x = 137,219.67 × 54,112.46
  4. Step 4: Simplify right side
    99,434.12x = 7,425,293,904.09
  5. Step 5: Solve for x
    x = 7,425,293,904.09/99,434.12
  6. Step 6: Final answer
    x = 74,675.51

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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.