Home / 157,316.07-217,088.46-85,691.82

Finding the Fourth Proportional to 157,316.07, 217,088.46 and 85,691.82

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Solution

The fourth proportional to 157,316.07, 217,088.46 and 85,691.82 is: 118,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,316.07 : 217,088.46 = 85,691.82 : x
  2. Step 2: Convert to fraction form
    157,316.07/217,088.46 = 85,691.82/x
  3. Step 3: Cross multiply
    157,316.07x = 217,088.46 × 85,691.82
  4. Step 4: Simplify right side
    157,316.07x = 18,602,705,238.40
  5. Step 5: Solve for x
    x = 18,602,705,238.40/157,316.07
  6. Step 6: Final answer
    x = 118,250.51

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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.