Home / 112,343.15-154,962.36-85,426.65

Finding the Fourth Proportional to 112,343.15, 154,962.36 and 85,426.65

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Solution

The fourth proportional to 112,343.15, 154,962.36 and 85,426.65 is: 117,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343.15 : 154,962.36 = 85,426.65 : x
  2. Step 2: Convert to fraction form
    112,343.15/154,962.36 = 85,426.65/x
  3. Step 3: Cross multiply
    112,343.15x = 154,962.36 × 85,426.65
  4. Step 4: Simplify right side
    112,343.15x = 13,237,914,863.76
  5. Step 5: Solve for x
    x = 13,237,914,863.76/112,343.15
  6. Step 6: Final answer
    x = 117,834.64

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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.