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Finding the Fourth Proportional to 134,199.20, 201,298.80 and 89,962.40

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Solution

The fourth proportional to 134,199.20, 201,298.80 and 89,962.40 is: 134,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,199.20 : 201,298.80 = 89,962.40 : x
  2. Step 2: Convert to fraction form
    134,199.20/201,298.80 = 89,962.40/x
  3. Step 3: Cross multiply
    134,199.20x = 201,298.80 × 89,962.40
  4. Step 4: Simplify right side
    134,199.20x = 18,109,323,165.12
  5. Step 5: Solve for x
    x = 18,109,323,165.12/134,199.20
  6. Step 6: Final answer
    x = 134,943.60

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1.5x scale

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.