Home / 156,805.54-216,370.65-93,120.10

Finding the Fourth Proportional to 156,805.54, 216,370.65 and 93,120.10

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Solution

The fourth proportional to 156,805.54, 216,370.65 and 93,120.10 is: 128,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,805.54 : 216,370.65 = 93,120.10 : x
  2. Step 2: Convert to fraction form
    156,805.54/216,370.65 = 93,120.10/x
  3. Step 3: Cross multiply
    156,805.54x = 216,370.65 × 93,120.10
  4. Step 4: Simplify right side
    156,805.54x = 20,148,456,565.07
  5. Step 5: Solve for x
    x = 20,148,456,565.07/156,805.54
  6. Step 6: Final answer
    x = 128,493.27

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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.