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Finding the Fourth Proportional to 109,091.87, 150,547.71 and 61,344.80

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Solution

The fourth proportional to 109,091.87, 150,547.71 and 61,344.80 is: 84,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,091.87 : 150,547.71 = 61,344.80 : x
  2. Step 2: Convert to fraction form
    109,091.87/150,547.71 = 61,344.80/x
  3. Step 3: Cross multiply
    109,091.87x = 150,547.71 × 61,344.80
  4. Step 4: Simplify right side
    109,091.87x = 9,235,319,160.41
  5. Step 5: Solve for x
    x = 9,235,319,160.41/109,091.87
  6. Step 6: Final answer
    x = 84,656.35

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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.