Home / 112,113.32-154,724.10-64,380.20

Finding the Fourth Proportional to 112,113.32, 154,724.10 and 64,380.20

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Solution

The fourth proportional to 112,113.32, 154,724.10 and 64,380.20 is: 88,849.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,113.32 : 154,724.10 = 64,380.20 : x
  2. Step 2: Convert to fraction form
    112,113.32/154,724.10 = 64,380.20/x
  3. Step 3: Cross multiply
    112,113.32x = 154,724.10 × 64,380.20
  4. Step 4: Simplify right side
    112,113.32x = 9,961,168,502.82
  5. Step 5: Solve for x
    x = 9,961,168,502.82/112,113.32
  6. Step 6: Final answer
    x = 88,849.11

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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.