Home / 109,835.16-151,574.94-67,368.60

Finding the Fourth Proportional to 109,835.16, 151,574.94 and 67,368.60

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Solution

The fourth proportional to 109,835.16, 151,574.94 and 67,368.60 is: 92,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,835.16 : 151,574.94 = 67,368.60 : x
  2. Step 2: Convert to fraction form
    109,835.16/151,574.94 = 67,368.60/x
  3. Step 3: Cross multiply
    109,835.16x = 151,574.94 × 67,368.60
  4. Step 4: Simplify right side
    109,835.16x = 10,211,391,502.88
  5. Step 5: Solve for x
    x = 10,211,391,502.88/109,835.16
  6. Step 6: Final answer
    x = 92,970.15

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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.