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Finding the Fourth Proportional to 144,026.10, 216,039.15 and 84,831.30

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Solution

The fourth proportional to 144,026.10, 216,039.15 and 84,831.30 is: 127,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,026.10 : 216,039.15 = 84,831.30 : x
  2. Step 2: Convert to fraction form
    144,026.10/216,039.15 = 84,831.30/x
  3. Step 3: Cross multiply
    144,026.10x = 216,039.15 × 84,831.30
  4. Step 4: Simplify right side
    144,026.10x = 18,326,881,945.40
  5. Step 5: Solve for x
    x = 18,326,881,945.40/144,026.10
  6. Step 6: Final answer
    x = 127,246.95

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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.