Home / 112,257.40-154,935.28-66,938.30

Finding the Fourth Proportional to 112,257.40, 154,935.28 and 66,938.30

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Solution

The fourth proportional to 112,257.40, 154,935.28 and 66,938.30 is: 92,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,257.40 : 154,935.28 = 66,938.30 : x
  2. Step 2: Convert to fraction form
    112,257.40/154,935.28 = 66,938.30/x
  3. Step 3: Cross multiply
    112,257.40x = 154,935.28 × 66,938.30
  4. Step 4: Simplify right side
    112,257.40x = 10,371,104,253.22
  5. Step 5: Solve for x
    x = 10,371,104,253.22/112,257.40
  6. Step 6: Final answer
    x = 92,386.82

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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.