Home / 97,307.42-134,360.25-76,146.98

Finding the Fourth Proportional to 97,307.42, 134,360.25 and 76,146.98

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Solution

The fourth proportional to 97,307.42, 134,360.25 and 76,146.98 is: 105,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,307.42 : 134,360.25 = 76,146.98 : x
  2. Step 2: Convert to fraction form
    97,307.42/134,360.25 = 76,146.98/x
  3. Step 3: Cross multiply
    97,307.42x = 134,360.25 × 76,146.98
  4. Step 4: Simplify right side
    97,307.42x = 10,231,127,269.55
  5. Step 5: Solve for x
    x = 10,231,127,269.55/97,307.42
  6. Step 6: Final answer
    x = 105,142.31

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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.