Home / 109,741.65-151,435.62-64,421.48

Finding the Fourth Proportional to 109,741.65, 151,435.62 and 64,421.48

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Solution

The fourth proportional to 109,741.65, 151,435.62 and 64,421.48 is: 88,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,741.65 : 151,435.62 = 64,421.48 : x
  2. Step 2: Convert to fraction form
    109,741.65/151,435.62 = 64,421.48/x
  3. Step 3: Cross multiply
    109,741.65x = 151,435.62 × 64,421.48
  4. Step 4: Simplify right side
    109,741.65x = 9,755,706,007.94
  5. Step 5: Solve for x
    x = 9,755,706,007.94/109,741.65
  6. Step 6: Final answer
    x = 88,897.02

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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.