Home / 152,972.40-211,089.53-88,445.78

Finding the Fourth Proportional to 152,972.40, 211,089.53 and 88,445.78

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Solution

The fourth proportional to 152,972.40, 211,089.53 and 88,445.78 is: 122,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,972.40 : 211,089.53 = 88,445.78 : x
  2. Step 2: Convert to fraction form
    152,972.40/211,089.53 = 88,445.78/x
  3. Step 3: Cross multiply
    152,972.40x = 211,089.53 × 88,445.78
  4. Step 4: Simplify right side
    152,972.40x = 18,669,976,633.01
  5. Step 5: Solve for x
    x = 18,669,976,633.01/152,972.40
  6. Step 6: Final answer
    x = 122,048.01

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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.