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Finding the Fourth Proportional to 109,459.04, 151,000 and 69,153.44

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Solution

The fourth proportional to 109,459.04, 151,000 and 69,153.44 is: 95,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,459.04 : 151,000 = 69,153.44 : x
  2. Step 2: Convert to fraction form
    109,459.04/151,000 = 69,153.44/x
  3. Step 3: Cross multiply
    109,459.04x = 151,000 × 69,153.44
  4. Step 4: Simplify right side
    109,459.04x = 10,442,169,440
  5. Step 5: Solve for x
    x = 10,442,169,440/109,459.04
  6. Step 6: Final answer
    x = 95,397.96

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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.