Home / 112,145.19-154,758.40-61,158.31

Finding the Fourth Proportional to 112,145.19, 154,758.40 and 61,158.31

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Solution

The fourth proportional to 112,145.19, 154,758.40 and 61,158.31 is: 84,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.19 : 154,758.40 = 61,158.31 : x
  2. Step 2: Convert to fraction form
    112,145.19/154,758.40 = 61,158.31/x
  3. Step 3: Cross multiply
    112,145.19x = 154,758.40 × 61,158.31
  4. Step 4: Simplify right side
    112,145.19x = 9,464,762,202.30
  5. Step 5: Solve for x
    x = 9,464,762,202.30/112,145.19
  6. Step 6: Final answer
    x = 84,397.40

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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.