Home / 157,730.26-217,671.06-86,113.30

Finding the Fourth Proportional to 157,730.26, 217,671.06 and 86,113.30

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Solution

The fourth proportional to 157,730.26, 217,671.06 and 86,113.30 is: 118,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,730.26 : 217,671.06 = 86,113.30 : x
  2. Step 2: Convert to fraction form
    157,730.26/217,671.06 = 86,113.30/x
  3. Step 3: Cross multiply
    157,730.26x = 217,671.06 × 86,113.30
  4. Step 4: Simplify right side
    157,730.26x = 18,744,373,291.10
  5. Step 5: Solve for x
    x = 18,744,373,291.10/157,730.26
  6. Step 6: Final answer
    x = 118,838.16

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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.