Home / 109,554.72-151,184.32-61,823.52

Finding the Fourth Proportional to 109,554.72, 151,184.32 and 61,823.52

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Solution

The fourth proportional to 109,554.72, 151,184.32 and 61,823.52 is: 85,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,554.72 : 151,184.32 = 61,823.52 : x
  2. Step 2: Convert to fraction form
    109,554.72/151,184.32 = 61,823.52/x
  3. Step 3: Cross multiply
    109,554.72x = 151,184.32 × 61,823.52
  4. Step 4: Simplify right side
    109,554.72x = 9,346,746,831.21
  5. Step 5: Solve for x
    x = 9,346,746,831.21/109,554.72
  6. Step 6: Final answer
    x = 85,315.78

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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.