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Finding the Fourth Proportional to 109,063.40, 150,509.04 and 61,314.08

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Solution

The fourth proportional to 109,063.40, 150,509.04 and 61,314.08 is: 84,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,063.40 : 150,509.04 = 61,314.08 : x
  2. Step 2: Convert to fraction form
    109,063.40/150,509.04 = 61,314.08/x
  3. Step 3: Cross multiply
    109,063.40x = 150,509.04 × 61,314.08
  4. Step 4: Simplify right side
    109,063.40x = 9,228,323,319.28
  5. Step 5: Solve for x
    x = 9,228,323,319.28/109,063.40
  6. Step 6: Final answer
    x = 84,614.30

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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.