Home / 99,573.70-137,412.92-57,136.18

Finding the Fourth Proportional to 99,573.70, 137,412.92 and 57,136.18

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Solution

The fourth proportional to 99,573.70, 137,412.92 and 57,136.18 is: 78,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.70 : 137,412.92 = 57,136.18 : x
  2. Step 2: Convert to fraction form
    99,573.70/137,412.92 = 57,136.18/x
  3. Step 3: Cross multiply
    99,573.70x = 137,412.92 × 57,136.18
  4. Step 4: Simplify right side
    99,573.70x = 7,851,249,331.45
  5. Step 5: Solve for x
    x = 7,851,249,331.45/99,573.70
  6. Step 6: Final answer
    x = 78,848.63

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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.