Home / 157,002.91-216,661.97-85,381.40

Finding the Fourth Proportional to 157,002.91, 216,661.97 and 85,381.40

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Solution

The fourth proportional to 157,002.91, 216,661.97 and 85,381.40 is: 117,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,002.91 : 216,661.97 = 85,381.40 : x
  2. Step 2: Convert to fraction form
    157,002.91/216,661.97 = 85,381.40/x
  3. Step 3: Cross multiply
    157,002.91x = 216,661.97 × 85,381.40
  4. Step 4: Simplify right side
    157,002.91x = 18,498,903,080.47
  5. Step 5: Solve for x
    x = 18,498,903,080.47/157,002.91
  6. Step 6: Final answer
    x = 117,825.23

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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.