Home / 157,740.42-217,673.25-89,755.38

Finding the Fourth Proportional to 157,740.42, 217,673.25 and 89,755.38

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Solution

The fourth proportional to 157,740.42, 217,673.25 and 89,755.38 is: 123,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,740.42 : 217,673.25 = 89,755.38 : x
  2. Step 2: Convert to fraction form
    157,740.42/217,673.25 = 89,755.38/x
  3. Step 3: Cross multiply
    157,740.42x = 217,673.25 × 89,755.38
  4. Step 4: Simplify right side
    157,740.42x = 19,537,345,269.59
  5. Step 5: Solve for x
    x = 19,537,345,269.59/157,740.42
  6. Step 6: Final answer
    x = 123,857.57

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1.5x scale

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.