Home / 97,897.84-135,155-64,461.04

Finding the Fourth Proportional to 97,897.84, 135,155 and 64,461.04

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Solution

The fourth proportional to 97,897.84, 135,155 and 64,461.04 is: 88,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,897.84 : 135,155 = 64,461.04 : x
  2. Step 2: Convert to fraction form
    97,897.84/135,155 = 64,461.04/x
  3. Step 3: Cross multiply
    97,897.84x = 135,155 × 64,461.04
  4. Step 4: Simplify right side
    97,897.84x = 8,712,231,861.20
  5. Step 5: Solve for x
    x = 8,712,231,861.20/97,897.84
  6. Step 6: Final answer
    x = 88,993.10

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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.