Home / 112,374.40-155,106.48-64,633.12

Finding the Fourth Proportional to 112,374.40, 155,106.48 and 64,633.12

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Solution

The fourth proportional to 112,374.40, 155,106.48 and 64,633.12 is: 89,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,374.40 : 155,106.48 = 64,633.12 : x
  2. Step 2: Convert to fraction form
    112,374.40/155,106.48 = 64,633.12/x
  3. Step 3: Cross multiply
    112,374.40x = 155,106.48 × 64,633.12
  4. Step 4: Simplify right side
    112,374.40x = 10,025,015,734.62
  5. Step 5: Solve for x
    x = 10,025,015,734.62/112,374.40
  6. Step 6: Final answer
    x = 89,210.85

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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.