Home / 99,684.10-137,567.36-54,365.81

Finding the Fourth Proportional to 99,684.10, 137,567.36 and 54,365.81

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Solution

The fourth proportional to 99,684.10, 137,567.36 and 54,365.81 is: 75,026.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.10 : 137,567.36 = 54,365.81 : x
  2. Step 2: Convert to fraction form
    99,684.10/137,567.36 = 54,365.81/x
  3. Step 3: Cross multiply
    99,684.10x = 137,567.36 × 54,365.81
  4. Step 4: Simplify right side
    99,684.10x = 7,478,960,955.96
  5. Step 5: Solve for x
    x = 7,478,960,955.96/99,684.10
  6. Step 6: Final answer
    x = 75,026.62

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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.