Home / 111,711.60-154,160.28-61,409.52

Finding the Fourth Proportional to 111,711.60, 154,160.28 and 61,409.52

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Solution

The fourth proportional to 111,711.60, 154,160.28 and 61,409.52 is: 84,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,711.60 : 154,160.28 = 61,409.52 : x
  2. Step 2: Convert to fraction form
    111,711.60/154,160.28 = 61,409.52/x
  3. Step 3: Cross multiply
    111,711.60x = 154,160.28 × 61,409.52
  4. Step 4: Simplify right side
    111,711.60x = 9,466,908,797.87
  5. Step 5: Solve for x
    x = 9,466,908,797.87/111,711.60
  6. Step 6: Final answer
    x = 84,744.19

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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.