Home / 161,758.40-242,637.60-105,771.20

Finding the Fourth Proportional to 161,758.40, 242,637.60 and 105,771.20

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Solution

The fourth proportional to 161,758.40, 242,637.60 and 105,771.20 is: 158,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758.40 : 242,637.60 = 105,771.20 : x
  2. Step 2: Convert to fraction form
    161,758.40/242,637.60 = 105,771.20/x
  3. Step 3: Cross multiply
    161,758.40x = 242,637.60 × 105,771.20
  4. Step 4: Simplify right side
    161,758.40x = 25,664,070,117.12
  5. Step 5: Solve for x
    x = 25,664,070,117.12/161,758.40
  6. Step 6: Final answer
    x = 158,656.80

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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.