Home / 131,701.57-181,746.77-71,270.87

Finding the Fourth Proportional to 131,701.57, 181,746.77 and 71,270.87

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Solution

The fourth proportional to 131,701.57, 181,746.77 and 71,270.87 is: 98,353.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,701.57 : 181,746.77 = 71,270.87 : x
  2. Step 2: Convert to fraction form
    131,701.57/181,746.77 = 71,270.87/x
  3. Step 3: Cross multiply
    131,701.57x = 181,746.77 × 71,270.87
  4. Step 4: Simplify right side
    131,701.57x = 12,953,250,061.24
  5. Step 5: Solve for x
    x = 12,953,250,061.24/131,701.57
  6. Step 6: Final answer
    x = 98,353.05

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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.