Home / 131,411.22-181,347.56-70,981.87

Finding the Fourth Proportional to 131,411.22, 181,347.56 and 70,981.87

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Solution

The fourth proportional to 131,411.22, 181,347.56 and 70,981.87 is: 97,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,411.22 : 181,347.56 = 70,981.87 : x
  2. Step 2: Convert to fraction form
    131,411.22/181,347.56 = 70,981.87/x
  3. Step 3: Cross multiply
    131,411.22x = 181,347.56 × 70,981.87
  4. Step 4: Simplify right side
    131,411.22x = 12,872,388,928.74
  5. Step 5: Solve for x
    x = 12,872,388,928.74/131,411.22
  6. Step 6: Final answer
    x = 97,955.02

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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.