Home / 113,864.58-157,272.66-85,311.87

Finding the Fourth Proportional to 113,864.58, 157,272.66 and 85,311.87

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Solution

The fourth proportional to 113,864.58, 157,272.66 and 85,311.87 is: 117,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,864.58 : 157,272.66 = 85,311.87 : x
  2. Step 2: Convert to fraction form
    113,864.58/157,272.66 = 85,311.87/x
  3. Step 3: Cross multiply
    113,864.58x = 157,272.66 × 85,311.87
  4. Step 4: Simplify right side
    113,864.58x = 13,417,224,724.47
  5. Step 5: Solve for x
    x = 13,417,224,724.47/113,864.58
  6. Step 6: Final answer
    x = 117,834.93

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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.