Home / 137,812.17-190,191.83-77,386.83

Finding the Fourth Proportional to 137,812.17, 190,191.83 and 77,386.83

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Solution

The fourth proportional to 137,812.17, 190,191.83 and 77,386.83 is: 106,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,812.17 : 190,191.83 = 77,386.83 : x
  2. Step 2: Convert to fraction form
    137,812.17/190,191.83 = 77,386.83/x
  3. Step 3: Cross multiply
    137,812.17x = 190,191.83 × 77,386.83
  4. Step 4: Simplify right side
    137,812.17x = 14,718,342,428.66
  5. Step 5: Solve for x
    x = 14,718,342,428.66/137,812.17
  6. Step 6: Final answer
    x = 106,800.02

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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.