Home / 99,283.12-137,007.35-56,833.45

Finding the Fourth Proportional to 99,283.12, 137,007.35 and 56,833.45

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Solution

The fourth proportional to 99,283.12, 137,007.35 and 56,833.45 is: 78,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,283.12 : 137,007.35 = 56,833.45 : x
  2. Step 2: Convert to fraction form
    99,283.12/137,007.35 = 56,833.45/x
  3. Step 3: Cross multiply
    99,283.12x = 137,007.35 × 56,833.45
  4. Step 4: Simplify right side
    99,283.12x = 7,786,599,962.30
  5. Step 5: Solve for x
    x = 7,786,599,962.30/99,283.12
  6. Step 6: Final answer
    x = 78,428.24

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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.