Home / 152,905.74-229,253.94-77,880.66

Finding the Fourth Proportional to 152,905.74, 229,253.94 and 77,880.66

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Solution

The fourth proportional to 152,905.74, 229,253.94 and 77,880.66 is: 116,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,905.74 : 229,253.94 = 77,880.66 : x
  2. Step 2: Convert to fraction form
    152,905.74/229,253.94 = 77,880.66/x
  3. Step 3: Cross multiply
    152,905.74x = 229,253.94 × 77,880.66
  4. Step 4: Simplify right side
    152,905.74x = 17,854,448,154.80
  5. Step 5: Solve for x
    x = 17,854,448,154.80/152,905.74
  6. Step 6: Final answer
    x = 116,767.68

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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.