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Finding the Fourth Proportional to 101,352.64, 139,878.81 and 58,911.18

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Solution

The fourth proportional to 101,352.64, 139,878.81 and 58,911.18 is: 81,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,352.64 : 139,878.81 = 58,911.18 : x
  2. Step 2: Convert to fraction form
    101,352.64/139,878.81 = 58,911.18/x
  3. Step 3: Cross multiply
    101,352.64x = 139,878.81 × 58,911.18
  4. Step 4: Simplify right side
    101,352.64x = 8,240,425,754.10
  5. Step 5: Solve for x
    x = 8,240,425,754.10/101,352.64
  6. Step 6: Final answer
    x = 81,304.50

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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.