Home / 99,455.23-137,152.81-66,823.44

Finding the Fourth Proportional to 99,455.23, 137,152.81 and 66,823.44

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Solution

The fourth proportional to 99,455.23, 137,152.81 and 66,823.44 is: 92,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455.23 : 137,152.81 = 66,823.44 : x
  2. Step 2: Convert to fraction form
    99,455.23/137,152.81 = 66,823.44/x
  3. Step 3: Cross multiply
    99,455.23x = 137,152.81 × 66,823.44
  4. Step 4: Simplify right side
    99,455.23x = 9,165,022,051.16
  5. Step 5: Solve for x
    x = 9,165,022,051.16/99,455.23
  6. Step 6: Final answer
    x = 92,152.24

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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.