Home / 136,156.60-187,881.78-75,717.46

Finding the Fourth Proportional to 136,156.60, 187,881.78 and 75,717.46

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Solution

The fourth proportional to 136,156.60, 187,881.78 and 75,717.46 is: 104,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,156.60 : 187,881.78 = 75,717.46 : x
  2. Step 2: Convert to fraction form
    136,156.60/187,881.78 = 75,717.46/x
  3. Step 3: Cross multiply
    136,156.60x = 187,881.78 × 75,717.46
  4. Step 4: Simplify right side
    136,156.60x = 14,225,931,161.88
  5. Step 5: Solve for x
    x = 14,225,931,161.88/136,156.60
  6. Step 6: Final answer
    x = 104,482.13

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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.