Home / 109,666.61-151,339.93-61,923.05

Finding the Fourth Proportional to 109,666.61, 151,339.93 and 61,923.05

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Solution

The fourth proportional to 109,666.61, 151,339.93 and 61,923.05 is: 85,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,666.61 : 151,339.93 = 61,923.05 : x
  2. Step 2: Convert to fraction form
    109,666.61/151,339.93 = 61,923.05/x
  3. Step 3: Cross multiply
    109,666.61x = 151,339.93 × 61,923.05
  4. Step 4: Simplify right side
    109,666.61x = 9,371,429,708.40
  5. Step 5: Solve for x
    x = 9,371,429,708.40/109,666.61
  6. Step 6: Final answer
    x = 85,453.81

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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.