Home / 112,065.40-154,582.86-88,154.20

Finding the Fourth Proportional to 112,065.40, 154,582.86 and 88,154.20

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Solution

The fourth proportional to 112,065.40, 154,582.86 and 88,154.20 is: 121,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.40 : 154,582.86 = 88,154.20 : x
  2. Step 2: Convert to fraction form
    112,065.40/154,582.86 = 88,154.20/x
  3. Step 3: Cross multiply
    112,065.40x = 154,582.86 × 88,154.20
  4. Step 4: Simplify right side
    112,065.40x = 13,627,128,357.01
  5. Step 5: Solve for x
    x = 13,627,128,357.01/112,065.40
  6. Step 6: Final answer
    x = 121,599.78

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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.