Home / 145,899.12-218,874.60-49,831.10

Finding the Fourth Proportional to 145,899.12, 218,874.60 and 49,831.10

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Solution

The fourth proportional to 145,899.12, 218,874.60 and 49,831.10 is: 74,755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,899.12 : 218,874.60 = 49,831.10 : x
  2. Step 2: Convert to fraction form
    145,899.12/218,874.60 = 49,831.10/x
  3. Step 3: Cross multiply
    145,899.12x = 218,874.60 × 49,831.10
  4. Step 4: Simplify right side
    145,899.12x = 10,906,762,080.06
  5. Step 5: Solve for x
    x = 10,906,762,080.06/145,899.12
  6. Step 6: Final answer
    x = 74,755.50

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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.