Home / 118,380.60-163,368.73-64,666.50

Finding the Fourth Proportional to 118,380.60, 163,368.73 and 64,666.50

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Solution

The fourth proportional to 118,380.60, 163,368.73 and 64,666.50 is: 89,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,380.60 : 163,368.73 = 64,666.50 : x
  2. Step 2: Convert to fraction form
    118,380.60/163,368.73 = 64,666.50/x
  3. Step 3: Cross multiply
    118,380.60x = 163,368.73 × 64,666.50
  4. Step 4: Simplify right side
    118,380.60x = 10,564,483,446.75
  5. Step 5: Solve for x
    x = 10,564,483,446.75/118,380.60
  6. Step 6: Final answer
    x = 89,241.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.