Home / 109,642.41-151,280.87-64,318.05

Finding the Fourth Proportional to 109,642.41, 151,280.87 and 64,318.05

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Solution

The fourth proportional to 109,642.41, 151,280.87 and 64,318.05 is: 88,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,642.41 : 151,280.87 = 64,318.05 : x
  2. Step 2: Convert to fraction form
    109,642.41/151,280.87 = 64,318.05/x
  3. Step 3: Cross multiply
    109,642.41x = 151,280.87 × 64,318.05
  4. Step 4: Simplify right side
    109,642.41x = 9,730,090,239.11
  5. Step 5: Solve for x
    x = 9,730,090,239.11/109,642.41
  6. Step 6: Final answer
    x = 88,743.86

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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.