Home / 110,121.50-151,931.52-61,716.35

Finding the Fourth Proportional to 110,121.50, 151,931.52 and 61,716.35

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Solution

The fourth proportional to 110,121.50, 151,931.52 and 61,716.35 is: 85,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,121.50 : 151,931.52 = 61,716.35 : x
  2. Step 2: Convert to fraction form
    110,121.50/151,931.52 = 61,716.35/x
  3. Step 3: Cross multiply
    110,121.50x = 151,931.52 × 61,716.35
  4. Step 4: Simplify right side
    110,121.50x = 9,376,657,796.11
  5. Step 5: Solve for x
    x = 9,376,657,796.11/110,121.50
  6. Step 6: Final answer
    x = 85,148.30

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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.