Home / 112,165.52-154,788.12-64,421.96

Finding the Fourth Proportional to 112,165.52, 154,788.12 and 64,421.96

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Solution

The fourth proportional to 112,165.52, 154,788.12 and 64,421.96 is: 88,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,165.52 : 154,788.12 = 64,421.96 : x
  2. Step 2: Convert to fraction form
    112,165.52/154,788.12 = 64,421.96/x
  3. Step 3: Cross multiply
    112,165.52x = 154,788.12 × 64,421.96
  4. Step 4: Simplify right side
    112,165.52x = 9,971,754,075.12
  5. Step 5: Solve for x
    x = 9,971,754,075.12/112,165.52
  6. Step 6: Final answer
    x = 88,902.13

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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.