Home / 142,435.87-196,600.37-88,689.13

Finding the Fourth Proportional to 142,435.87, 196,600.37 and 88,689.13

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Solution

The fourth proportional to 142,435.87, 196,600.37 and 88,689.13 is: 122,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,435.87 : 196,600.37 = 88,689.13 : x
  2. Step 2: Convert to fraction form
    142,435.87/196,600.37 = 88,689.13/x
  3. Step 3: Cross multiply
    142,435.87x = 196,600.37 × 88,689.13
  4. Step 4: Simplify right side
    142,435.87x = 17,436,314,838.03
  5. Step 5: Solve for x
    x = 17,436,314,838.03/142,435.87
  6. Step 6: Final answer
    x = 122,415.20

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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.