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Finding the Fourth Proportional to 112,011, 154,575.18 and 61,711.08

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Solution

The fourth proportional to 112,011, 154,575.18 and 61,711.08 is: 85,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,011 : 154,575.18 = 61,711.08 : x
  2. Step 2: Convert to fraction form
    112,011/154,575.18 = 61,711.08/x
  3. Step 3: Cross multiply
    112,011x = 154,575.18 × 61,711.08
  4. Step 4: Simplify right side
    112,011x = 9,539,001,298.99
  5. Step 5: Solve for x
    x = 9,539,001,298.99/112,011
  6. Step 6: Final answer
    x = 85,161.29

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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.