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Finding the Fourth Proportional to 97,803.37, 134,959.31 and 77,708.89

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Solution

The fourth proportional to 97,803.37, 134,959.31 and 77,708.89 is: 107,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,803.37 : 134,959.31 = 77,708.89 : x
  2. Step 2: Convert to fraction form
    97,803.37/134,959.31 = 77,708.89/x
  3. Step 3: Cross multiply
    97,803.37x = 134,959.31 × 77,708.89
  4. Step 4: Simplify right side
    97,803.37x = 10,487,537,500.47
  5. Step 5: Solve for x
    x = 10,487,537,500.47/97,803.37
  6. Step 6: Final answer
    x = 107,230.85

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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.