Home / 137,384.40-189,404.32-117,455.36

Finding the Fourth Proportional to 137,384.40, 189,404.32 and 117,455.36

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Solution

The fourth proportional to 137,384.40, 189,404.32 and 117,455.36 is: 161,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,384.40 : 189,404.32 = 117,455.36 : x
  2. Step 2: Convert to fraction form
    137,384.40/189,404.32 = 117,455.36/x
  3. Step 3: Cross multiply
    137,384.40x = 189,404.32 × 117,455.36
  4. Step 4: Simplify right side
    137,384.40x = 22,246,552,591.16
  5. Step 5: Solve for x
    x = 22,246,552,591.16/137,384.40
  6. Step 6: Final answer
    x = 161,929.25

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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.