Home / 189,402.93-261,382.32-103,366.62

Finding the Fourth Proportional to 189,402.93, 261,382.32 and 103,366.62

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Solution

The fourth proportional to 189,402.93, 261,382.32 and 103,366.62 is: 142,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,402.93 : 261,382.32 = 103,366.62 : x
  2. Step 2: Convert to fraction form
    189,402.93/261,382.32 = 103,366.62/x
  3. Step 3: Cross multiply
    189,402.93x = 261,382.32 × 103,366.62
  4. Step 4: Simplify right side
    189,402.93x = 27,018,206,946.16
  5. Step 5: Solve for x
    x = 27,018,206,946.16/189,402.93
  6. Step 6: Final answer
    x = 142,649.36

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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.