Home / 92,678.32-138,339.23-79,614.64

Finding the Fourth Proportional to 92,678.32, 138,339.23 and 79,614.64

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Solution

The fourth proportional to 92,678.32, 138,339.23 and 79,614.64 is: 118,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,678.32 : 138,339.23 = 79,614.64 : x
  2. Step 2: Convert to fraction form
    92,678.32/138,339.23 = 79,614.64/x
  3. Step 3: Cross multiply
    92,678.32x = 138,339.23 × 79,614.64
  4. Step 4: Simplify right side
    92,678.32x = 11,013,827,994.33
  5. Step 5: Solve for x
    x = 11,013,827,994.33/92,678.32
  6. Step 6: Final answer
    x = 118,839.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.