Home / 97,935.95-135,192.98-66,147.91

Finding the Fourth Proportional to 97,935.95, 135,192.98 and 66,147.91

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Solution

The fourth proportional to 97,935.95, 135,192.98 and 66,147.91 is: 91,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,935.95 : 135,192.98 = 66,147.91 : x
  2. Step 2: Convert to fraction form
    97,935.95/135,192.98 = 66,147.91/x
  3. Step 3: Cross multiply
    97,935.95x = 135,192.98 × 66,147.91
  4. Step 4: Simplify right side
    97,935.95x = 8,942,732,901.06
  5. Step 5: Solve for x
    x = 8,942,732,901.06/97,935.95
  6. Step 6: Final answer
    x = 91,312.05

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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.