Home / 112,317.66-154,998.36-64,580.40

Finding the Fourth Proportional to 112,317.66, 154,998.36 and 64,580.40

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Solution

The fourth proportional to 112,317.66, 154,998.36 and 64,580.40 is: 89,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,317.66 : 154,998.36 = 64,580.40 : x
  2. Step 2: Convert to fraction form
    112,317.66/154,998.36 = 64,580.40/x
  3. Step 3: Cross multiply
    112,317.66x = 154,998.36 × 64,580.40
  4. Step 4: Simplify right side
    112,317.66x = 10,009,856,088.14
  5. Step 5: Solve for x
    x = 10,009,856,088.14/112,317.66
  6. Step 6: Final answer
    x = 89,120.95

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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.