Home / 112,282.92-154,950.06-61,981.56

Finding the Fourth Proportional to 112,282.92, 154,950.06 and 61,981.56

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Solution

The fourth proportional to 112,282.92, 154,950.06 and 61,981.56 is: 85,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,282.92 : 154,950.06 = 61,981.56 : x
  2. Step 2: Convert to fraction form
    112,282.92/154,950.06 = 61,981.56/x
  3. Step 3: Cross multiply
    112,282.92x = 154,950.06 × 61,981.56
  4. Step 4: Simplify right side
    112,282.92x = 9,604,046,440.89
  5. Step 5: Solve for x
    x = 9,604,046,440.89/112,282.92
  6. Step 6: Final answer
    x = 85,534.35

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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.