Home / 112,343.65-154,963.04-85,427.15

Finding the Fourth Proportional to 112,343.65, 154,963.04 and 85,427.15

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Solution

The fourth proportional to 112,343.65, 154,963.04 and 85,427.15 is: 117,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343.65 : 154,963.04 = 85,427.15 : x
  2. Step 2: Convert to fraction form
    112,343.65/154,963.04 = 85,427.15/x
  3. Step 3: Cross multiply
    112,343.65x = 154,963.04 × 85,427.15
  4. Step 4: Simplify right side
    112,343.65x = 13,238,050,862.54
  5. Step 5: Solve for x
    x = 13,238,050,862.54/112,343.65
  6. Step 6: Final answer
    x = 117,835.33

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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.