Home / 112,242.48-154,967.50-86,704.40

Finding the Fourth Proportional to 112,242.48, 154,967.50 and 86,704.40

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Solution

The fourth proportional to 112,242.48, 154,967.50 and 86,704.40 is: 119,708.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,242.48 : 154,967.50 = 86,704.40 : x
  2. Step 2: Convert to fraction form
    112,242.48/154,967.50 = 86,704.40/x
  3. Step 3: Cross multiply
    112,242.48x = 154,967.50 × 86,704.40
  4. Step 4: Simplify right side
    112,242.48x = 13,436,364,107
  5. Step 5: Solve for x
    x = 13,436,364,107/112,242.48
  6. Step 6: Final answer
    x = 119,708.37

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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.