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Finding the Fourth Proportional to 97,802.74, 134,958.45 and 77,708.26

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Solution

The fourth proportional to 97,802.74, 134,958.45 and 77,708.26 is: 107,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,802.74 : 134,958.45 = 77,708.26 : x
  2. Step 2: Convert to fraction form
    97,802.74/134,958.45 = 77,708.26/x
  3. Step 3: Cross multiply
    97,802.74x = 134,958.45 × 77,708.26
  4. Step 4: Simplify right side
    97,802.74x = 10,487,386,321.80
  5. Step 5: Solve for x
    x = 10,487,386,321.80/97,802.74
  6. Step 6: Final answer
    x = 107,229.98

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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.