Home / 99,665.70-137,504.17-63,875.45

Finding the Fourth Proportional to 99,665.70, 137,504.17 and 63,875.45

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Solution

The fourth proportional to 99,665.70, 137,504.17 and 63,875.45 is: 88,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665.70 : 137,504.17 = 63,875.45 : x
  2. Step 2: Convert to fraction form
    99,665.70/137,504.17 = 63,875.45/x
  3. Step 3: Cross multiply
    99,665.70x = 137,504.17 × 63,875.45
  4. Step 4: Simplify right side
    99,665.70x = 8,783,140,735.63
  5. Step 5: Solve for x
    x = 8,783,140,735.63/99,665.70
  6. Step 6: Final answer
    x = 88,126.01

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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.