Home / 152,967.40-211,082.64-88,440.78

Finding the Fourth Proportional to 152,967.40, 211,082.64 and 88,440.78

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Solution

The fourth proportional to 152,967.40, 211,082.64 and 88,440.78 is: 122,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,967.40 : 211,082.64 = 88,440.78 : x
  2. Step 2: Convert to fraction form
    152,967.40/211,082.64 = 88,440.78/x
  3. Step 3: Cross multiply
    152,967.40x = 211,082.64 × 88,440.78
  4. Step 4: Simplify right side
    152,967.40x = 18,668,313,584.47
  5. Step 5: Solve for x
    x = 18,668,313,584.47/152,967.40
  6. Step 6: Final answer
    x = 122,041.12

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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.