Home / 109,444.05-151,032.78-61,697.40

Finding the Fourth Proportional to 109,444.05, 151,032.78 and 61,697.40

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Solution

The fourth proportional to 109,444.05, 151,032.78 and 61,697.40 is: 85,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,444.05 : 151,032.78 = 61,697.40 : x
  2. Step 2: Convert to fraction form
    109,444.05/151,032.78 = 61,697.40/x
  3. Step 3: Cross multiply
    109,444.05x = 151,032.78 × 61,697.40
  4. Step 4: Simplify right side
    109,444.05x = 9,318,329,840.77
  5. Step 5: Solve for x
    x = 9,318,329,840.77/109,444.05
  6. Step 6: Final answer
    x = 85,142.41

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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.