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Finding the Fourth Proportional to 161,903.20, 242,854.80 and 109,026.40

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Solution

The fourth proportional to 161,903.20, 242,854.80 and 109,026.40 is: 163,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,903.20 : 242,854.80 = 109,026.40 : x
  2. Step 2: Convert to fraction form
    161,903.20/242,854.80 = 109,026.40/x
  3. Step 3: Cross multiply
    161,903.20x = 242,854.80 × 109,026.40
  4. Step 4: Simplify right side
    161,903.20x = 26,477,584,566.72
  5. Step 5: Solve for x
    x = 26,477,584,566.72/161,903.20
  6. Step 6: Final answer
    x = 163,539.60

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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.