Home / 111,318.74-153,515.67-71,058.50

Finding the Fourth Proportional to 111,318.74, 153,515.67 and 71,058.50

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Solution

The fourth proportional to 111,318.74, 153,515.67 and 71,058.50 is: 97,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,318.74 : 153,515.67 = 71,058.50 : x
  2. Step 2: Convert to fraction form
    111,318.74/153,515.67 = 71,058.50/x
  3. Step 3: Cross multiply
    111,318.74x = 153,515.67 × 71,058.50
  4. Step 4: Simplify right side
    111,318.74x = 10,908,593,354.01
  5. Step 5: Solve for x
    x = 10,908,593,354.01/111,318.74
  6. Step 6: Final answer
    x = 97,994.22

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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.