Home / 121,185.40-181,705.20-62,136.40

Finding the Fourth Proportional to 121,185.40, 181,705.20 and 62,136.40

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Solution

The fourth proportional to 121,185.40, 181,705.20 and 62,136.40 is: 93,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185.40 : 181,705.20 = 62,136.40 : x
  2. Step 2: Convert to fraction form
    121,185.40/181,705.20 = 62,136.40/x
  3. Step 3: Cross multiply
    121,185.40x = 181,705.20 × 62,136.40
  4. Step 4: Simplify right side
    121,185.40x = 11,290,506,989.28
  5. Step 5: Solve for x
    x = 11,290,506,989.28/121,185.40
  6. Step 6: Final answer
    x = 93,167.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.