Home / 157,440.58-217,263.67-85,822

Finding the Fourth Proportional to 157,440.58, 217,263.67 and 85,822

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Solution

The fourth proportional to 157,440.58, 217,263.67 and 85,822 is: 118,432.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,440.58 : 217,263.67 = 85,822 : x
  2. Step 2: Convert to fraction form
    157,440.58/217,263.67 = 85,822/x
  3. Step 3: Cross multiply
    157,440.58x = 217,263.67 × 85,822
  4. Step 4: Simplify right side
    157,440.58x = 18,646,002,686.74
  5. Step 5: Solve for x
    x = 18,646,002,686.74/157,440.58
  6. Step 6: Final answer
    x = 118,432.00

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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.