Home / 161,886.86-223,405.16-90,271.70

Finding the Fourth Proportional to 161,886.86, 223,405.16 and 90,271.70

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Solution

The fourth proportional to 161,886.86, 223,405.16 and 90,271.70 is: 124,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,886.86 : 223,405.16 = 90,271.70 : x
  2. Step 2: Convert to fraction form
    161,886.86/223,405.16 = 90,271.70/x
  3. Step 3: Cross multiply
    161,886.86x = 223,405.16 × 90,271.70
  4. Step 4: Simplify right side
    161,886.86x = 20,167,162,013.59
  5. Step 5: Solve for x
    x = 20,167,162,013.59/161,886.86
  6. Step 6: Final answer
    x = 124,575.66

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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.