Home / 144,010.40-216,015.60-91,263.20

Finding the Fourth Proportional to 144,010.40, 216,015.60 and 91,263.20

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Solution

The fourth proportional to 144,010.40, 216,015.60 and 91,263.20 is: 136,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,010.40 : 216,015.60 = 91,263.20 : x
  2. Step 2: Convert to fraction form
    144,010.40/216,015.60 = 91,263.20/x
  3. Step 3: Cross multiply
    144,010.40x = 216,015.60 × 91,263.20
  4. Step 4: Simplify right side
    144,010.40x = 19,714,274,905.92
  5. Step 5: Solve for x
    x = 19,714,274,905.92/144,010.40
  6. Step 6: Final answer
    x = 136,894.80

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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.