Home / 102,509.48-141,472.82-64,275.08

Finding the Fourth Proportional to 102,509.48, 141,472.82 and 64,275.08

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Solution

The fourth proportional to 102,509.48, 141,472.82 and 64,275.08 is: 88,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,509.48 : 141,472.82 = 64,275.08 : x
  2. Step 2: Convert to fraction form
    102,509.48/141,472.82 = 64,275.08/x
  3. Step 3: Cross multiply
    102,509.48x = 141,472.82 × 64,275.08
  4. Step 4: Simplify right side
    102,509.48x = 9,093,176,823.33
  5. Step 5: Solve for x
    x = 9,093,176,823.33/102,509.48
  6. Step 6: Final answer
    x = 88,705.72

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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.