Home / 112,000.53-154,560.38-61,699.53

Finding the Fourth Proportional to 112,000.53, 154,560.38 and 61,699.53

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Solution

The fourth proportional to 112,000.53, 154,560.38 and 61,699.53 is: 85,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.53 : 154,560.38 = 61,699.53 : x
  2. Step 2: Convert to fraction form
    112,000.53/154,560.38 = 61,699.53/x
  3. Step 3: Cross multiply
    112,000.53x = 154,560.38 × 61,699.53
  4. Step 4: Simplify right side
    112,000.53x = 9,536,302,494.12
  5. Step 5: Solve for x
    x = 9,536,302,494.12/112,000.53
  6. Step 6: Final answer
    x = 85,145.16

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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.