Home / 207,711.09-286,641.45-112,217.76

Finding the Fourth Proportional to 207,711.09, 286,641.45 and 112,217.76

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Solution

The fourth proportional to 207,711.09, 286,641.45 and 112,217.76 is: 154,860.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,711.09 : 286,641.45 = 112,217.76 : x
  2. Step 2: Convert to fraction form
    207,711.09/286,641.45 = 112,217.76/x
  3. Step 3: Cross multiply
    207,711.09x = 286,641.45 × 112,217.76
  4. Step 4: Simplify right side
    207,711.09x = 32,166,261,442.15
  5. Step 5: Solve for x
    x = 32,166,261,442.15/207,711.09
  6. Step 6: Final answer
    x = 154,860.59

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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.