Home / 147,831.40-221,747.10-54,317.80

Finding the Fourth Proportional to 147,831.40, 221,747.10 and 54,317.80

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Solution

The fourth proportional to 147,831.40, 221,747.10 and 54,317.80 is: 81,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,831.40 : 221,747.10 = 54,317.80 : x
  2. Step 2: Convert to fraction form
    147,831.40/221,747.10 = 54,317.80/x
  3. Step 3: Cross multiply
    147,831.40x = 221,747.10 × 54,317.80
  4. Step 4: Simplify right side
    147,831.40x = 12,044,814,628.38
  5. Step 5: Solve for x
    x = 12,044,814,628.38/147,831.40
  6. Step 6: Final answer
    x = 81,476.70

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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.