Home / 112,145.67-154,759.08-61,158.81

Finding the Fourth Proportional to 112,145.67, 154,759.08 and 61,158.81

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Solution

The fourth proportional to 112,145.67, 154,759.08 and 61,158.81 is: 84,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.67 : 154,759.08 = 61,158.81 : x
  2. Step 2: Convert to fraction form
    112,145.67/154,759.08 = 61,158.81/x
  3. Step 3: Cross multiply
    112,145.67x = 154,759.08 × 61,158.81
  4. Step 4: Simplify right side
    112,145.67x = 9,464,881,169.49
  5. Step 5: Solve for x
    x = 9,464,881,169.49/112,145.67
  6. Step 6: Final answer
    x = 84,398.10

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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.