Home / 97,831.80-146,747.70-91,222.20

Finding the Fourth Proportional to 97,831.80, 146,747.70 and 91,222.20

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Solution

The fourth proportional to 97,831.80, 146,747.70 and 91,222.20 is: 136,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,831.80 : 146,747.70 = 91,222.20 : x
  2. Step 2: Convert to fraction form
    97,831.80/146,747.70 = 91,222.20/x
  3. Step 3: Cross multiply
    97,831.80x = 146,747.70 × 91,222.20
  4. Step 4: Simplify right side
    97,831.80x = 13,386,648,038.94
  5. Step 5: Solve for x
    x = 13,386,648,038.94/97,831.80
  6. Step 6: Final answer
    x = 136,833.30

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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.