Home / 118,771.74-163,907.36-65,056.76

Finding the Fourth Proportional to 118,771.74, 163,907.36 and 65,056.76

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Solution

The fourth proportional to 118,771.74, 163,907.36 and 65,056.76 is: 89,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,771.74 : 163,907.36 = 65,056.76 : x
  2. Step 2: Convert to fraction form
    118,771.74/163,907.36 = 65,056.76/x
  3. Step 3: Cross multiply
    118,771.74x = 163,907.36 × 65,056.76
  4. Step 4: Simplify right side
    118,771.74x = 10,663,281,781.75
  5. Step 5: Solve for x
    x = 10,663,281,781.75/118,771.74
  6. Step 6: Final answer
    x = 89,779.62

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1.5x scale

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.