Home / 148,683.61-205,180.81-80,699.13

Finding the Fourth Proportional to 148,683.61, 205,180.81 and 80,699.13

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Solution

The fourth proportional to 148,683.61, 205,180.81 and 80,699.13 is: 111,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,683.61 : 205,180.81 = 80,699.13 : x
  2. Step 2: Convert to fraction form
    148,683.61/205,180.81 = 80,699.13/x
  3. Step 3: Cross multiply
    148,683.61x = 205,180.81 × 80,699.13
  4. Step 4: Simplify right side
    148,683.61x = 16,557,911,833.79
  5. Step 5: Solve for x
    x = 16,557,911,833.79/148,683.61
  6. Step 6: Final answer
    x = 111,363.39

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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.