Home / 112,132.42-154,741.62-61,145.02

Finding the Fourth Proportional to 112,132.42, 154,741.62 and 61,145.02

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Solution

The fourth proportional to 112,132.42, 154,741.62 and 61,145.02 is: 84,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,132.42 : 154,741.62 = 61,145.02 : x
  2. Step 2: Convert to fraction form
    112,132.42/154,741.62 = 61,145.02/x
  3. Step 3: Cross multiply
    112,132.42x = 154,741.62 × 61,145.02
  4. Step 4: Simplify right side
    112,132.42x = 9,461,679,449.73
  5. Step 5: Solve for x
    x = 9,461,679,449.73/112,132.42
  6. Step 6: Final answer
    x = 84,379.52

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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.