Home / 113,256.48-156,312-65,538.84

Finding the Fourth Proportional to 113,256.48, 156,312 and 65,538.84

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Solution

The fourth proportional to 113,256.48, 156,312 and 65,538.84 is: 90,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,256.48 : 156,312 = 65,538.84 : x
  2. Step 2: Convert to fraction form
    113,256.48/156,312 = 65,538.84/x
  3. Step 3: Cross multiply
    113,256.48x = 156,312 × 65,538.84
  4. Step 4: Simplify right side
    113,256.48x = 10,244,507,158.08
  5. Step 5: Solve for x
    x = 10,244,507,158.08/113,256.48
  6. Step 6: Final answer
    x = 90,454.05

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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.