Home / 99,700.06-137,508.28-63,893.40

Finding the Fourth Proportional to 99,700.06, 137,508.28 and 63,893.40

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Solution

The fourth proportional to 99,700.06, 137,508.28 and 63,893.40 is: 88,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,700.06 : 137,508.28 = 63,893.40 : x
  2. Step 2: Convert to fraction form
    99,700.06/137,508.28 = 63,893.40/x
  3. Step 3: Cross multiply
    99,700.06x = 137,508.28 × 63,893.40
  4. Step 4: Simplify right side
    99,700.06x = 8,785,871,537.35
  5. Step 5: Solve for x
    x = 8,785,871,537.35/99,700.06
  6. Step 6: Final answer
    x = 88,123.03

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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.