Home / 161,899.80-223,411.20-90,275.58

Finding the Fourth Proportional to 161,899.80, 223,411.20 and 90,275.58

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Solution

The fourth proportional to 161,899.80, 223,411.20 and 90,275.58 is: 124,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,899.80 : 223,411.20 = 90,275.58 : x
  2. Step 2: Convert to fraction form
    161,899.80/223,411.20 = 90,275.58/x
  3. Step 3: Cross multiply
    161,899.80x = 223,411.20 × 90,275.58
  4. Step 4: Simplify right side
    161,899.80x = 20,168,575,658.50
  5. Step 5: Solve for x
    x = 20,168,575,658.50/161,899.80
  6. Step 6: Final answer
    x = 124,574.43

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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.