Home / 133,430.16-184,156.20-76,831.12

Finding the Fourth Proportional to 133,430.16, 184,156.20 and 76,831.12

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Solution

The fourth proportional to 133,430.16, 184,156.20 and 76,831.12 is: 106,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,430.16 : 184,156.20 = 76,831.12 : x
  2. Step 2: Convert to fraction form
    133,430.16/184,156.20 = 76,831.12/x
  3. Step 3: Cross multiply
    133,430.16x = 184,156.20 × 76,831.12
  4. Step 4: Simplify right side
    133,430.16x = 14,148,927,100.94
  5. Step 5: Solve for x
    x = 14,148,927,100.94/133,430.16
  6. Step 6: Final answer
    x = 106,039.95

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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.