Home / 118,213.75-163,159.26-72,281.25

Finding the Fourth Proportional to 118,213.75, 163,159.26 and 72,281.25

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Solution

The fourth proportional to 118,213.75, 163,159.26 and 72,281.25 is: 99,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213.75 : 163,159.26 = 72,281.25 : x
  2. Step 2: Convert to fraction form
    118,213.75/163,159.26 = 72,281.25/x
  3. Step 3: Cross multiply
    118,213.75x = 163,159.26 × 72,281.25
  4. Step 4: Simplify right side
    118,213.75x = 11,793,355,167.96
  5. Step 5: Solve for x
    x = 11,793,355,167.96/118,213.75
  6. Step 6: Final answer
    x = 99,762.97

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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.