Home / 113,627.64-156,803.08-65,228.16

Finding the Fourth Proportional to 113,627.64, 156,803.08 and 65,228.16

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Solution

The fourth proportional to 113,627.64, 156,803.08 and 65,228.16 is: 90,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,627.64 : 156,803.08 = 65,228.16 : x
  2. Step 2: Convert to fraction form
    113,627.64/156,803.08 = 65,228.16/x
  3. Step 3: Cross multiply
    113,627.64x = 156,803.08 × 65,228.16
  4. Step 4: Simplify right side
    113,627.64x = 10,227,976,390.73
  5. Step 5: Solve for x
    x = 10,227,976,390.73/113,627.64
  6. Step 6: Final answer
    x = 90,013.10

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1.5x scale

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.