Home / 99,666.61-137,552.34-57,224.23

Finding the Fourth Proportional to 99,666.61, 137,552.34 and 57,224.23

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Solution

The fourth proportional to 99,666.61, 137,552.34 and 57,224.23 is: 78,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.61 : 137,552.34 = 57,224.23 : x
  2. Step 2: Convert to fraction form
    99,666.61/137,552.34 = 57,224.23/x
  3. Step 3: Cross multiply
    99,666.61x = 137,552.34 × 57,224.23
  4. Step 4: Simplify right side
    99,666.61x = 7,871,326,741.20
  5. Step 5: Solve for x
    x = 7,871,326,741.20/99,666.61
  6. Step 6: Final answer
    x = 78,976.57

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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.