Home / 89,320.04-134,514.95-81,348.44

Finding the Fourth Proportional to 89,320.04, 134,514.95 and 81,348.44

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Solution

The fourth proportional to 89,320.04, 134,514.95 and 81,348.44 is: 122,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,320.04 : 134,514.95 = 81,348.44 : x
  2. Step 2: Convert to fraction form
    89,320.04/134,514.95 = 81,348.44/x
  3. Step 3: Cross multiply
    89,320.04x = 134,514.95 × 81,348.44
  4. Step 4: Simplify right side
    89,320.04x = 10,942,581,339.18
  5. Step 5: Solve for x
    x = 10,942,581,339.18/89,320.04
  6. Step 6: Final answer
    x = 122,509.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.