Home / 107,877.20-161,815.80-70,552.40

Finding the Fourth Proportional to 107,877.20, 161,815.80 and 70,552.40

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Solution

The fourth proportional to 107,877.20, 161,815.80 and 70,552.40 is: 105,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,877.20 : 161,815.80 = 70,552.40 : x
  2. Step 2: Convert to fraction form
    107,877.20/161,815.80 = 70,552.40/x
  3. Step 3: Cross multiply
    107,877.20x = 161,815.80 × 70,552.40
  4. Step 4: Simplify right side
    107,877.20x = 11,416,493,047.92
  5. Step 5: Solve for x
    x = 11,416,493,047.92/107,877.20
  6. Step 6: Final answer
    x = 105,828.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.