Home / 145,085.04-200,223.60-80,554.28

Finding the Fourth Proportional to 145,085.04, 200,223.60 and 80,554.28

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Solution

The fourth proportional to 145,085.04, 200,223.60 and 80,554.28 is: 111,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,085.04 : 200,223.60 = 80,554.28 : x
  2. Step 2: Convert to fraction form
    145,085.04/200,223.60 = 80,554.28/x
  3. Step 3: Cross multiply
    145,085.04x = 200,223.60 × 80,554.28
  4. Step 4: Simplify right side
    145,085.04x = 16,128,866,935.89
  5. Step 5: Solve for x
    x = 16,128,866,935.89/145,085.04
  6. Step 6: Final answer
    x = 111,168.37

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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.