Home / 157,880.12-217,877.70-86,264.59

Finding the Fourth Proportional to 157,880.12, 217,877.70 and 86,264.59

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Solution

The fourth proportional to 157,880.12, 217,877.70 and 86,264.59 is: 119,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,880.12 : 217,877.70 = 86,264.59 : x
  2. Step 2: Convert to fraction form
    157,880.12/217,877.70 = 86,264.59/x
  3. Step 3: Cross multiply
    157,880.12x = 217,877.70 × 86,264.59
  4. Step 4: Simplify right side
    157,880.12x = 18,795,130,239.44
  5. Step 5: Solve for x
    x = 18,795,130,239.44/157,880.12
  6. Step 6: Final answer
    x = 119,046.84

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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.