Home / 157,460.16-217,292-85,840.80

Finding the Fourth Proportional to 157,460.16, 217,292 and 85,840.80

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Solution

The fourth proportional to 157,460.16, 217,292 and 85,840.80 is: 118,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,460.16 : 217,292 = 85,840.80 : x
  2. Step 2: Convert to fraction form
    157,460.16/217,292 = 85,840.80/x
  3. Step 3: Cross multiply
    157,460.16x = 217,292 × 85,840.80
  4. Step 4: Simplify right side
    157,460.16x = 18,652,519,113.60
  5. Step 5: Solve for x
    x = 18,652,519,113.60/157,460.16
  6. Step 6: Final answer
    x = 118,458.66

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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.