Home / 99,281.16-137,005.56-56,836.08

Finding the Fourth Proportional to 99,281.16, 137,005.56 and 56,836.08

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Solution

The fourth proportional to 99,281.16, 137,005.56 and 56,836.08 is: 78,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,281.16 : 137,005.56 = 56,836.08 : x
  2. Step 2: Convert to fraction form
    99,281.16/137,005.56 = 56,836.08/x
  3. Step 3: Cross multiply
    99,281.16x = 137,005.56 × 56,836.08
  4. Step 4: Simplify right side
    99,281.16x = 7,786,858,968.60
  5. Step 5: Solve for x
    x = 7,786,858,968.60/99,281.16
  6. Step 6: Final answer
    x = 78,432.39

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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.