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Finding the Fourth Proportional to 162,561.60, 243,842.40 and 102,637.80

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Solution

The fourth proportional to 162,561.60, 243,842.40 and 102,637.80 is: 153,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,561.60 : 243,842.40 = 102,637.80 : x
  2. Step 2: Convert to fraction form
    162,561.60/243,842.40 = 102,637.80/x
  3. Step 3: Cross multiply
    162,561.60x = 243,842.40 × 102,637.80
  4. Step 4: Simplify right side
    162,561.60x = 25,027,447,482.72
  5. Step 5: Solve for x
    x = 25,027,447,482.72/162,561.60
  6. Step 6: Final answer
    x = 153,956.70

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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.