Home / 155,904.55-233,802.15-80,999.80

Finding the Fourth Proportional to 155,904.55, 233,802.15 and 80,999.80

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Solution

The fourth proportional to 155,904.55, 233,802.15 and 80,999.80 is: 121,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,904.55 : 233,802.15 = 80,999.80 : x
  2. Step 2: Convert to fraction form
    155,904.55/233,802.15 = 80,999.80/x
  3. Step 3: Cross multiply
    155,904.55x = 233,802.15 × 80,999.80
  4. Step 4: Simplify right side
    155,904.55x = 18,937,927,389.57
  5. Step 5: Solve for x
    x = 18,937,927,389.57/155,904.55
  6. Step 6: Final answer
    x = 121,471.29

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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.