Home / 154,109.95-212,737.22-93,699.90

Finding the Fourth Proportional to 154,109.95, 212,737.22 and 93,699.90

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Solution

The fourth proportional to 154,109.95, 212,737.22 and 93,699.90 is: 129,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,109.95 : 212,737.22 = 93,699.90 : x
  2. Step 2: Convert to fraction form
    154,109.95/212,737.22 = 93,699.90/x
  3. Step 3: Cross multiply
    154,109.95x = 212,737.22 × 93,699.90
  4. Step 4: Simplify right side
    154,109.95x = 19,933,456,240.28
  5. Step 5: Solve for x
    x = 19,933,456,240.28/154,109.95
  6. Step 6: Final answer
    x = 129,345.68

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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.