Home / 109,437.15-151,025.60-61,690.49

Finding the Fourth Proportional to 109,437.15, 151,025.60 and 61,690.49

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Solution

The fourth proportional to 109,437.15, 151,025.60 and 61,690.49 is: 85,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,437.15 : 151,025.60 = 61,690.49 : x
  2. Step 2: Convert to fraction form
    109,437.15/151,025.60 = 61,690.49/x
  3. Step 3: Cross multiply
    109,437.15x = 151,025.60 × 61,690.49
  4. Step 4: Simplify right side
    109,437.15x = 9,316,842,202.96
  5. Step 5: Solve for x
    x = 9,316,842,202.96/109,437.15
  6. Step 6: Final answer
    x = 85,134.18

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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.