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Finding the Fourth Proportional to 145,281, 200,441.70 and 88,664.04

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Solution

The fourth proportional to 145,281, 200,441.70 and 88,664.04 is: 122,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,281 : 200,441.70 = 88,664.04 : x
  2. Step 2: Convert to fraction form
    145,281/200,441.70 = 88,664.04/x
  3. Step 3: Cross multiply
    145,281x = 200,441.70 × 88,664.04
  4. Step 4: Simplify right side
    145,281x = 17,771,970,906.47
  5. Step 5: Solve for x
    x = 17,771,970,906.47/145,281
  6. Step 6: Final answer
    x = 122,328.25

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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.