Home / 112,089.65-154,681.60-61,102.85

Finding the Fourth Proportional to 112,089.65, 154,681.60 and 61,102.85

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Solution

The fourth proportional to 112,089.65, 154,681.60 and 61,102.85 is: 84,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,089.65 : 154,681.60 = 61,102.85 : x
  2. Step 2: Convert to fraction form
    112,089.65/154,681.60 = 61,102.85/x
  3. Step 3: Cross multiply
    112,089.65x = 154,681.60 × 61,102.85
  4. Step 4: Simplify right side
    112,089.65x = 9,451,486,602.56
  5. Step 5: Solve for x
    x = 9,451,486,602.56/112,089.65
  6. Step 6: Final answer
    x = 84,320.78

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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.