Home / 99,856.64-137,798.40-54,533.12

Finding the Fourth Proportional to 99,856.64, 137,798.40 and 54,533.12

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Solution

The fourth proportional to 99,856.64, 137,798.40 and 54,533.12 is: 75,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.64 : 137,798.40 = 54,533.12 : x
  2. Step 2: Convert to fraction form
    99,856.64/137,798.40 = 54,533.12/x
  3. Step 3: Cross multiply
    99,856.64x = 137,798.40 × 54,533.12
  4. Step 4: Simplify right side
    99,856.64x = 7,514,576,683.01
  5. Step 5: Solve for x
    x = 7,514,576,683.01/99,856.64
  6. Step 6: Final answer
    x = 75,253.65

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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.