Home / 151,641.02-209,196.94-87,941.90

Finding the Fourth Proportional to 151,641.02, 209,196.94 and 87,941.90

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Solution

The fourth proportional to 151,641.02, 209,196.94 and 87,941.90 is: 121,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,641.02 : 209,196.94 = 87,941.90 : x
  2. Step 2: Convert to fraction form
    151,641.02/209,196.94 = 87,941.90/x
  3. Step 3: Cross multiply
    151,641.02x = 209,196.94 × 87,941.90
  4. Step 4: Simplify right side
    151,641.02x = 18,397,176,377.79
  5. Step 5: Solve for x
    x = 18,397,176,377.79/151,641.02
  6. Step 6: Final answer
    x = 121,320.58

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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.