Home / 105,209.29-157,841.07-30,335.32

Finding the Fourth Proportional to 105,209.29, 157,841.07 and 30,335.32

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Solution

The fourth proportional to 105,209.29, 157,841.07 and 30,335.32 is: 45,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,209.29 : 157,841.07 = 30,335.32 : x
  2. Step 2: Convert to fraction form
    105,209.29/157,841.07 = 30,335.32/x
  3. Step 3: Cross multiply
    105,209.29x = 157,841.07 × 30,335.32
  4. Step 4: Simplify right side
    105,209.29x = 4,788,159,367.59
  5. Step 5: Solve for x
    x = 4,788,159,367.59/105,209.29
  6. Step 6: Final answer
    x = 45,510.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.