Home / 118,509.09-163,545.12-70,753.53

Finding the Fourth Proportional to 118,509.09, 163,545.12 and 70,753.53

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Solution

The fourth proportional to 118,509.09, 163,545.12 and 70,753.53 is: 97,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,509.09 : 163,545.12 = 70,753.53 : x
  2. Step 2: Convert to fraction form
    118,509.09/163,545.12 = 70,753.53/x
  3. Step 3: Cross multiply
    118,509.09x = 163,545.12 × 70,753.53
  4. Step 4: Simplify right side
    118,509.09x = 11,571,394,554.27
  5. Step 5: Solve for x
    x = 11,571,394,554.27/118,509.09
  6. Step 6: Final answer
    x = 97,641.41

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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.