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Finding the Fourth Proportional to 109,580.99, 151,214.61 and 61,187.47

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Solution

The fourth proportional to 109,580.99, 151,214.61 and 61,187.47 is: 84,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,580.99 : 151,214.61 = 61,187.47 : x
  2. Step 2: Convert to fraction form
    109,580.99/151,214.61 = 61,187.47/x
  3. Step 3: Cross multiply
    109,580.99x = 151,214.61 × 61,187.47
  4. Step 4: Simplify right side
    109,580.99x = 9,252,439,264.35
  5. Step 5: Solve for x
    x = 9,252,439,264.35/109,580.99
  6. Step 6: Final answer
    x = 84,434.72

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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.