Home / 112,118-154,724.05-61,130.32

Finding the Fourth Proportional to 112,118, 154,724.05 and 61,130.32

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Solution

The fourth proportional to 112,118, 154,724.05 and 61,130.32 is: 84,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,118 : 154,724.05 = 61,130.32 : x
  2. Step 2: Convert to fraction form
    112,118/154,724.05 = 61,130.32/x
  3. Step 3: Cross multiply
    112,118x = 154,724.05 × 61,130.32
  4. Step 4: Simplify right side
    112,118x = 9,458,330,688.20
  5. Step 5: Solve for x
    x = 9,458,330,688.20/112,118
  6. Step 6: Final answer
    x = 84,360.50

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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.