Home / 106,780.55-147,349.93-59,027.40

Finding the Fourth Proportional to 106,780.55, 147,349.93 and 59,027.40

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Solution

The fourth proportional to 106,780.55, 147,349.93 and 59,027.40 is: 81,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,780.55 : 147,349.93 = 59,027.40 : x
  2. Step 2: Convert to fraction form
    106,780.55/147,349.93 = 59,027.40/x
  3. Step 3: Cross multiply
    106,780.55x = 147,349.93 × 59,027.40
  4. Step 4: Simplify right side
    106,780.55x = 8,697,683,258.08
  5. Step 5: Solve for x
    x = 8,697,683,258.08/106,780.55
  6. Step 6: Final answer
    x = 81,453.82

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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.