Home / 145,943.04-201,401.36-78,875.04

Finding the Fourth Proportional to 145,943.04, 201,401.36 and 78,875.04

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Solution

The fourth proportional to 145,943.04, 201,401.36 and 78,875.04 is: 108,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,943.04 : 201,401.36 = 78,875.04 : x
  2. Step 2: Convert to fraction form
    145,943.04/201,401.36 = 78,875.04/x
  3. Step 3: Cross multiply
    145,943.04x = 201,401.36 × 78,875.04
  4. Step 4: Simplify right side
    145,943.04x = 15,885,540,326.05
  5. Step 5: Solve for x
    x = 15,885,540,326.05/145,943.04
  6. Step 6: Final answer
    x = 108,847.54

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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.