Home / 151,538.18-209,071.90-97,859.48

Finding the Fourth Proportional to 151,538.18, 209,071.90 and 97,859.48

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Solution

The fourth proportional to 151,538.18, 209,071.90 and 97,859.48 is: 135,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,538.18 : 209,071.90 = 97,859.48 : x
  2. Step 2: Convert to fraction form
    151,538.18/209,071.90 = 97,859.48/x
  3. Step 3: Cross multiply
    151,538.18x = 209,071.90 × 97,859.48
  4. Step 4: Simplify right side
    151,538.18x = 20,459,667,416.61
  5. Step 5: Solve for x
    x = 20,459,667,416.61/151,538.18
  6. Step 6: Final answer
    x = 135,013.28

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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.