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Finding the Fourth Proportional to 109,349.61, 150,875.91 and 61,602.90

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Solution

The fourth proportional to 109,349.61, 150,875.91 and 61,602.90 is: 84,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,349.61 : 150,875.91 = 61,602.90 : x
  2. Step 2: Convert to fraction form
    109,349.61/150,875.91 = 61,602.90/x
  3. Step 3: Cross multiply
    109,349.61x = 150,875.91 × 61,602.90
  4. Step 4: Simplify right side
    109,349.61x = 9,294,393,596.14
  5. Step 5: Solve for x
    x = 9,294,393,596.14/109,349.61
  6. Step 6: Final answer
    x = 84,997.04

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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.