Home / 112,943.06-155,858.63-64,541.92

Finding the Fourth Proportional to 112,943.06, 155,858.63 and 64,541.92

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Solution

The fourth proportional to 112,943.06, 155,858.63 and 64,541.92 is: 89,066.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,943.06 : 155,858.63 = 64,541.92 : x
  2. Step 2: Convert to fraction form
    112,943.06/155,858.63 = 64,541.92/x
  3. Step 3: Cross multiply
    112,943.06x = 155,858.63 × 64,541.92
  4. Step 4: Simplify right side
    112,943.06x = 10,059,414,516.41
  5. Step 5: Solve for x
    x = 10,059,414,516.41/112,943.06
  6. Step 6: Final answer
    x = 89,066.25

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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.