Home / 99,856.27-137,802.59-56,833.65

Finding the Fourth Proportional to 99,856.27, 137,802.59 and 56,833.65

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Solution

The fourth proportional to 99,856.27, 137,802.59 and 56,833.65 is: 78,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.27 : 137,802.59 = 56,833.65 : x
  2. Step 2: Convert to fraction form
    99,856.27/137,802.59 = 56,833.65/x
  3. Step 3: Cross multiply
    99,856.27x = 137,802.59 × 56,833.65
  4. Step 4: Simplify right side
    99,856.27x = 7,831,823,884.99
  5. Step 5: Solve for x
    x = 7,831,823,884.99/99,856.27
  6. Step 6: Final answer
    x = 78,430.97

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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.