Home / 152,538.93-228,931.11-86,043.20

Finding the Fourth Proportional to 152,538.93, 228,931.11 and 86,043.20

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Solution

The fourth proportional to 152,538.93, 228,931.11 and 86,043.20 is: 129,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,538.93 : 228,931.11 = 86,043.20 : x
  2. Step 2: Convert to fraction form
    152,538.93/228,931.11 = 86,043.20/x
  3. Step 3: Cross multiply
    152,538.93x = 228,931.11 × 86,043.20
  4. Step 4: Simplify right side
    152,538.93x = 19,697,964,139.30
  5. Step 5: Solve for x
    x = 19,697,964,139.30/152,538.93
  6. Step 6: Final answer
    x = 129,134.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.