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Finding the Fourth Proportional to 134,681, 185,877.78 and 87,073.16

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Solution

The fourth proportional to 134,681, 185,877.78 and 87,073.16 is: 120,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,681 : 185,877.78 = 87,073.16 : x
  2. Step 2: Convert to fraction form
    134,681/185,877.78 = 87,073.16/x
  3. Step 3: Cross multiply
    134,681x = 185,877.78 × 87,073.16
  4. Step 4: Simplify right side
    134,681x = 16,184,965,678.38
  5. Step 5: Solve for x
    x = 16,184,965,678.38/134,681
  6. Step 6: Final answer
    x = 120,172.60

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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.