Home / 162,421.60-243,632.40-117,839.20

Finding the Fourth Proportional to 162,421.60, 243,632.40 and 117,839.20

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Solution

The fourth proportional to 162,421.60, 243,632.40 and 117,839.20 is: 176,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,421.60 : 243,632.40 = 117,839.20 : x
  2. Step 2: Convert to fraction form
    162,421.60/243,632.40 = 117,839.20/x
  3. Step 3: Cross multiply
    162,421.60x = 243,632.40 × 117,839.20
  4. Step 4: Simplify right side
    162,421.60x = 28,709,447,110.08
  5. Step 5: Solve for x
    x = 28,709,447,110.08/162,421.60
  6. Step 6: Final answer
    x = 176,758.80

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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.