Home / 138,772.18-208,158.81-33,590.98

Finding the Fourth Proportional to 138,772.18, 208,158.81 and 33,590.98

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Solution

The fourth proportional to 138,772.18, 208,158.81 and 33,590.98 is: 50,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772.18 : 208,158.81 = 33,590.98 : x
  2. Step 2: Convert to fraction form
    138,772.18/208,158.81 = 33,590.98/x
  3. Step 3: Cross multiply
    138,772.18x = 208,158.81 × 33,590.98
  4. Step 4: Simplify right side
    138,772.18x = 6,992,258,423.53
  5. Step 5: Solve for x
    x = 6,992,258,423.53/138,772.18
  6. Step 6: Final answer
    x = 50,386.60

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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.