Home / 97,280.16-134,357.33-65,393.70

Finding the Fourth Proportional to 97,280.16, 134,357.33 and 65,393.70

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Solution

The fourth proportional to 97,280.16, 134,357.33 and 65,393.70 is: 90,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,280.16 : 134,357.33 = 65,393.70 : x
  2. Step 2: Convert to fraction form
    97,280.16/134,357.33 = 65,393.70/x
  3. Step 3: Cross multiply
    97,280.16x = 134,357.33 × 65,393.70
  4. Step 4: Simplify right side
    97,280.16x = 8,786,122,590.47
  5. Step 5: Solve for x
    x = 8,786,122,590.47/97,280.16
  6. Step 6: Final answer
    x = 90,317.73

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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.