Home / 137,386.18-207,138.76-136,533.25

Finding the Fourth Proportional to 137,386.18, 207,138.76 and 136,533.25

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Solution

The fourth proportional to 137,386.18, 207,138.76 and 136,533.25 is: 205,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,386.18 : 207,138.76 = 136,533.25 : x
  2. Step 2: Convert to fraction form
    137,386.18/207,138.76 = 136,533.25/x
  3. Step 3: Cross multiply
    137,386.18x = 207,138.76 × 136,533.25
  4. Step 4: Simplify right side
    137,386.18x = 28,281,328,103.77
  5. Step 5: Solve for x
    x = 28,281,328,103.77/137,386.18
  6. Step 6: Final answer
    x = 205,852.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.