Home / 213,275.37-319,658.56-99,269.76

Finding the Fourth Proportional to 213,275.37, 319,658.56 and 99,269.76

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Solution

The fourth proportional to 213,275.37, 319,658.56 and 99,269.76 is: 148,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,275.37 : 319,658.56 = 99,269.76 : x
  2. Step 2: Convert to fraction form
    213,275.37/319,658.56 = 99,269.76/x
  3. Step 3: Cross multiply
    213,275.37x = 319,658.56 × 99,269.76
  4. Step 4: Simplify right side
    213,275.37x = 31,732,428,533.15
  5. Step 5: Solve for x
    x = 31,732,428,533.15/213,275.37
  6. Step 6: Final answer
    x = 148,786.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.