Home / 112,115.76-154,717.88-61,130.58

Finding the Fourth Proportional to 112,115.76, 154,717.88 and 61,130.58

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Solution

The fourth proportional to 112,115.76, 154,717.88 and 61,130.58 is: 84,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,115.76 : 154,717.88 = 61,130.58 : x
  2. Step 2: Convert to fraction form
    112,115.76/154,717.88 = 61,130.58/x
  3. Step 3: Cross multiply
    112,115.76x = 154,717.88 × 61,130.58
  4. Step 4: Simplify right side
    112,115.76x = 9,457,993,435.12
  5. Step 5: Solve for x
    x = 9,457,993,435.12/112,115.76
  6. Step 6: Final answer
    x = 84,359.18

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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.