Home / 155,267.96-214,278.22-86,364.70

Finding the Fourth Proportional to 155,267.96, 214,278.22 and 86,364.70

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Solution

The fourth proportional to 155,267.96, 214,278.22 and 86,364.70 is: 119,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.96 : 214,278.22 = 86,364.70 : x
  2. Step 2: Convert to fraction form
    155,267.96/214,278.22 = 86,364.70/x
  3. Step 3: Cross multiply
    155,267.96x = 214,278.22 × 86,364.70
  4. Step 4: Simplify right side
    155,267.96x = 18,506,073,970.92
  5. Step 5: Solve for x
    x = 18,506,073,970.92/155,267.96
  6. Step 6: Final answer
    x = 119,187.98

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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.