Home / 109,431.61-151,006.58-61,696.69

Finding the Fourth Proportional to 109,431.61, 151,006.58 and 61,696.69

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Solution

The fourth proportional to 109,431.61, 151,006.58 and 61,696.69 is: 85,136.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,431.61 : 151,006.58 = 61,696.69 : x
  2. Step 2: Convert to fraction form
    109,431.61/151,006.58 = 61,696.69/x
  3. Step 3: Cross multiply
    109,431.61x = 151,006.58 × 61,696.69
  4. Step 4: Simplify right side
    109,431.61x = 9,316,605,699.58
  5. Step 5: Solve for x
    x = 9,316,605,699.58/109,431.61
  6. Step 6: Final answer
    x = 85,136.33

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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.