Home / 106,778.81-147,352.56-59,031.11

Finding the Fourth Proportional to 106,778.81, 147,352.56 and 59,031.11

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Solution

The fourth proportional to 106,778.81, 147,352.56 and 59,031.11 is: 81,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,778.81 : 147,352.56 = 59,031.11 : x
  2. Step 2: Convert to fraction form
    106,778.81/147,352.56 = 59,031.11/x
  3. Step 3: Cross multiply
    106,778.81x = 147,352.56 × 59,031.11
  4. Step 4: Simplify right side
    106,778.81x = 8,698,385,178.14
  5. Step 5: Solve for x
    x = 8,698,385,178.14/106,778.81
  6. Step 6: Final answer
    x = 81,461.72

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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.