Home / 159,275.16-219,803.45-90,369.29

Finding the Fourth Proportional to 159,275.16, 219,803.45 and 90,369.29

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Solution

The fourth proportional to 159,275.16, 219,803.45 and 90,369.29 is: 124,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,275.16 : 219,803.45 = 90,369.29 : x
  2. Step 2: Convert to fraction form
    159,275.16/219,803.45 = 90,369.29/x
  3. Step 3: Cross multiply
    159,275.16x = 219,803.45 × 90,369.29
  4. Step 4: Simplify right side
    159,275.16x = 19,863,481,813.71
  5. Step 5: Solve for x
    x = 19,863,481,813.71/159,275.16
  6. Step 6: Final answer
    x = 124,711.74

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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.