Home / 112,318.13-155,005.32-61,335.59

Finding the Fourth Proportional to 112,318.13, 155,005.32 and 61,335.59

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Solution

The fourth proportional to 112,318.13, 155,005.32 and 61,335.59 is: 84,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.13 : 155,005.32 = 61,335.59 : x
  2. Step 2: Convert to fraction form
    112,318.13/155,005.32 = 61,335.59/x
  3. Step 3: Cross multiply
    112,318.13x = 155,005.32 × 61,335.59
  4. Step 4: Simplify right side
    112,318.13x = 9,507,343,142.85
  5. Step 5: Solve for x
    x = 9,507,343,142.85/112,318.13
  6. Step 6: Final answer
    x = 84,646.56

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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.