Home / 136,444.50-204,708.06-69,931.76

Finding the Fourth Proportional to 136,444.50, 204,708.06 and 69,931.76

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Solution

The fourth proportional to 136,444.50, 204,708.06 and 69,931.76 is: 104,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,444.50 : 204,708.06 = 69,931.76 : x
  2. Step 2: Convert to fraction form
    136,444.50/204,708.06 = 69,931.76/x
  3. Step 3: Cross multiply
    136,444.50x = 204,708.06 × 69,931.76
  4. Step 4: Simplify right side
    136,444.50x = 14,315,593,898.45
  5. Step 5: Solve for x
    x = 14,315,593,898.45/136,444.50
  6. Step 6: Final answer
    x = 104,918.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.