Home / 99,178.28-136,868.40-53,858.18

Finding the Fourth Proportional to 99,178.28, 136,868.40 and 53,858.18

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Solution

The fourth proportional to 99,178.28, 136,868.40 and 53,858.18 is: 74,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.28 : 136,868.40 = 53,858.18 : x
  2. Step 2: Convert to fraction form
    99,178.28/136,868.40 = 53,858.18/x
  3. Step 3: Cross multiply
    99,178.28x = 136,868.40 × 53,858.18
  4. Step 4: Simplify right side
    99,178.28x = 7,371,482,239.17
  5. Step 5: Solve for x
    x = 7,371,482,239.17/99,178.28
  6. Step 6: Final answer
    x = 74,325.57

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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.