Home / 97,685.28-134,658.72-76,427.64

Finding the Fourth Proportional to 97,685.28, 134,658.72 and 76,427.64

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Solution

The fourth proportional to 97,685.28, 134,658.72 and 76,427.64 is: 105,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,685.28 : 134,658.72 = 76,427.64 : x
  2. Step 2: Convert to fraction form
    97,685.28/134,658.72 = 76,427.64/x
  3. Step 3: Cross multiply
    97,685.28x = 134,658.72 × 76,427.64
  4. Step 4: Simplify right side
    97,685.28x = 10,291,648,175.02
  5. Step 5: Solve for x
    x = 10,291,648,175.02/97,685.28
  6. Step 6: Final answer
    x = 105,355.16

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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.