Home / 131,316.74-197,036.63-64,720.57

Finding the Fourth Proportional to 131,316.74, 197,036.63 and 64,720.57

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Solution

The fourth proportional to 131,316.74, 197,036.63 and 64,720.57 is: 97,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316.74 : 197,036.63 = 64,720.57 : x
  2. Step 2: Convert to fraction form
    131,316.74/197,036.63 = 64,720.57/x
  3. Step 3: Cross multiply
    131,316.74x = 197,036.63 × 64,720.57
  4. Step 4: Simplify right side
    131,316.74x = 12,752,321,695.69
  5. Step 5: Solve for x
    x = 12,752,321,695.69/131,316.74
  6. Step 6: Final answer
    x = 97,111.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.