Home / 97,935.84-135,081.47-89,895.04

Finding the Fourth Proportional to 97,935.84, 135,081.47 and 89,895.04

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Solution

The fourth proportional to 97,935.84, 135,081.47 and 89,895.04 is: 123,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,935.84 : 135,081.47 = 89,895.04 : x
  2. Step 2: Convert to fraction form
    97,935.84/135,081.47 = 89,895.04/x
  3. Step 3: Cross multiply
    97,935.84x = 135,081.47 × 89,895.04
  4. Step 4: Simplify right side
    97,935.84x = 12,143,154,148.91
  5. Step 5: Solve for x
    x = 12,143,154,148.91/97,935.84
  6. Step 6: Final answer
    x = 123,990.91

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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.