Home / 155,949.74-215,210.66-84,329.76

Finding the Fourth Proportional to 155,949.74, 215,210.66 and 84,329.76

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Solution

The fourth proportional to 155,949.74, 215,210.66 and 84,329.76 is: 116,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,949.74 : 215,210.66 = 84,329.76 : x
  2. Step 2: Convert to fraction form
    155,949.74/215,210.66 = 84,329.76/x
  3. Step 3: Cross multiply
    155,949.74x = 215,210.66 × 84,329.76
  4. Step 4: Simplify right side
    155,949.74x = 18,148,662,482.07
  5. Step 5: Solve for x
    x = 18,148,662,482.07/155,949.74
  6. Step 6: Final answer
    x = 116,375.07

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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.