Home / 109,869.89-151,623.44-62,130.38

Finding the Fourth Proportional to 109,869.89, 151,623.44 and 62,130.38

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Solution

The fourth proportional to 109,869.89, 151,623.44 and 62,130.38 is: 85,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.89 : 151,623.44 = 62,130.38 : x
  2. Step 2: Convert to fraction form
    109,869.89/151,623.44 = 62,130.38/x
  3. Step 3: Cross multiply
    109,869.89x = 151,623.44 × 62,130.38
  4. Step 4: Simplify right side
    109,869.89x = 9,420,420,875.34
  5. Step 5: Solve for x
    x = 9,420,420,875.34/109,869.89
  6. Step 6: Final answer
    x = 85,741.61

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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.