Home / 131,779.17-181,854.98-71,349.87

Finding the Fourth Proportional to 131,779.17, 181,854.98 and 71,349.87

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Solution

The fourth proportional to 131,779.17, 181,854.98 and 71,349.87 is: 98,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779.17 : 181,854.98 = 71,349.87 : x
  2. Step 2: Convert to fraction form
    131,779.17/181,854.98 = 71,349.87/x
  3. Step 3: Cross multiply
    131,779.17x = 181,854.98 × 71,349.87
  4. Step 4: Simplify right side
    131,779.17x = 12,975,329,360.23
  5. Step 5: Solve for x
    x = 12,975,329,360.23/131,779.17
  6. Step 6: Final answer
    x = 98,462.67

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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.