Home / 156,928.68-216,565.38-85,312.62

Finding the Fourth Proportional to 156,928.68, 216,565.38 and 85,312.62

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Solution

The fourth proportional to 156,928.68, 216,565.38 and 85,312.62 is: 117,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928.68 : 216,565.38 = 85,312.62 : x
  2. Step 2: Convert to fraction form
    156,928.68/216,565.38 = 85,312.62/x
  3. Step 3: Cross multiply
    156,928.68x = 216,565.38 × 85,312.62
  4. Step 4: Simplify right side
    156,928.68x = 18,475,759,969.10
  5. Step 5: Solve for x
    x = 18,475,759,969.10/156,928.68
  6. Step 6: Final answer
    x = 117,733.48

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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.