Home / 109,557.38-151,188.55-61,156.51

Finding the Fourth Proportional to 109,557.38, 151,188.55 and 61,156.51

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Solution

The fourth proportional to 109,557.38, 151,188.55 and 61,156.51 is: 84,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,557.38 : 151,188.55 = 61,156.51 : x
  2. Step 2: Convert to fraction form
    109,557.38/151,188.55 = 61,156.51/x
  3. Step 3: Cross multiply
    109,557.38x = 151,188.55 × 61,156.51
  4. Step 4: Simplify right side
    109,557.38x = 9,246,163,539.10
  5. Step 5: Solve for x
    x = 9,246,163,539.10/109,557.38
  6. Step 6: Final answer
    x = 84,395.62

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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.