Home / 117,031.05-161,502.86-63,316.04

Finding the Fourth Proportional to 117,031.05, 161,502.86 and 63,316.04

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Solution

The fourth proportional to 117,031.05, 161,502.86 and 63,316.04 is: 87,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,031.05 : 161,502.86 = 63,316.04 : x
  2. Step 2: Convert to fraction form
    117,031.05/161,502.86 = 63,316.04/x
  3. Step 3: Cross multiply
    117,031.05x = 161,502.86 × 63,316.04
  4. Step 4: Simplify right side
    117,031.05x = 10,225,720,894.65
  5. Step 5: Solve for x
    x = 10,225,720,894.65/117,031.05
  6. Step 6: Final answer
    x = 87,376.14

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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.