Home / 97,771.28-134,854.65-89,730.86

Finding the Fourth Proportional to 97,771.28, 134,854.65 and 89,730.86

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Solution

The fourth proportional to 97,771.28, 134,854.65 and 89,730.86 is: 123,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,771.28 : 134,854.65 = 89,730.86 : x
  2. Step 2: Convert to fraction form
    97,771.28/134,854.65 = 89,730.86/x
  3. Step 3: Cross multiply
    97,771.28x = 134,854.65 × 89,730.86
  4. Step 4: Simplify right side
    97,771.28x = 12,100,623,045.23
  5. Step 5: Solve for x
    x = 12,100,623,045.23/97,771.28
  6. Step 6: Final answer
    x = 123,764.60

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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.