Home / 109,532.32-151,170.18-61,790.08

Finding the Fourth Proportional to 109,532.32, 151,170.18 and 61,790.08

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Solution

The fourth proportional to 109,532.32, 151,170.18 and 61,790.08 is: 85,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,532.32 : 151,170.18 = 61,790.08 : x
  2. Step 2: Convert to fraction form
    109,532.32/151,170.18 = 61,790.08/x
  3. Step 3: Cross multiply
    109,532.32x = 151,170.18 × 61,790.08
  4. Step 4: Simplify right side
    109,532.32x = 9,340,817,515.81
  5. Step 5: Solve for x
    x = 9,340,817,515.81/109,532.32
  6. Step 6: Final answer
    x = 85,279.10

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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.