Home / 157,240.08-216,988.20-85,620.96

Finding the Fourth Proportional to 157,240.08, 216,988.20 and 85,620.96

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Solution

The fourth proportional to 157,240.08, 216,988.20 and 85,620.96 is: 118,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,240.08 : 216,988.20 = 85,620.96 : x
  2. Step 2: Convert to fraction form
    157,240.08/216,988.20 = 85,620.96/x
  3. Step 3: Cross multiply
    157,240.08x = 216,988.20 × 85,620.96
  4. Step 4: Simplify right side
    157,240.08x = 18,578,737,992.67
  5. Step 5: Solve for x
    x = 18,578,737,992.67/157,240.08
  6. Step 6: Final answer
    x = 118,155.23

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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.