Home / 115,374.49-159,288.87-88,465.30

Finding the Fourth Proportional to 115,374.49, 159,288.87 and 88,465.30

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Solution

The fourth proportional to 115,374.49, 159,288.87 and 88,465.30 is: 122,137.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.49 : 159,288.87 = 88,465.30 : x
  2. Step 2: Convert to fraction form
    115,374.49/159,288.87 = 88,465.30/x
  3. Step 3: Cross multiply
    115,374.49x = 159,288.87 × 88,465.30
  4. Step 4: Simplify right side
    115,374.49x = 14,091,537,671.21
  5. Step 5: Solve for x
    x = 14,091,537,671.21/115,374.49
  6. Step 6: Final answer
    x = 122,137.38

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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.