Home / 113,881.84-157,145.02-66,125.86

Finding the Fourth Proportional to 113,881.84, 157,145.02 and 66,125.86

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Solution

The fourth proportional to 113,881.84, 157,145.02 and 66,125.86 is: 91,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,881.84 : 157,145.02 = 66,125.86 : x
  2. Step 2: Convert to fraction form
    113,881.84/157,145.02 = 66,125.86/x
  3. Step 3: Cross multiply
    113,881.84x = 157,145.02 × 66,125.86
  4. Step 4: Simplify right side
    113,881.84x = 10,391,349,592.22
  5. Step 5: Solve for x
    x = 10,391,349,592.22/113,881.84
  6. Step 6: Final answer
    x = 91,246.77

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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.