Home / 112,876.54-155,747.66-66,927.67

Finding the Fourth Proportional to 112,876.54, 155,747.66 and 66,927.67

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Solution

The fourth proportional to 112,876.54, 155,747.66 and 66,927.67 is: 92,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,876.54 : 155,747.66 = 66,927.67 : x
  2. Step 2: Convert to fraction form
    112,876.54/155,747.66 = 66,927.67/x
  3. Step 3: Cross multiply
    112,876.54x = 155,747.66 × 66,927.67
  4. Step 4: Simplify right side
    112,876.54x = 10,423,827,644.21
  5. Step 5: Solve for x
    x = 10,423,827,644.21/112,876.54
  6. Step 6: Final answer
    x = 92,347.16

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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.