Home / 105,263.04-145,219.20-68,954.16

Finding the Fourth Proportional to 105,263.04, 145,219.20 and 68,954.16

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Solution

The fourth proportional to 105,263.04, 145,219.20 and 68,954.16 is: 95,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.04 : 145,219.20 = 68,954.16 : x
  2. Step 2: Convert to fraction form
    105,263.04/145,219.20 = 68,954.16/x
  3. Step 3: Cross multiply
    105,263.04x = 145,219.20 × 68,954.16
  4. Step 4: Simplify right side
    105,263.04x = 10,013,467,951.87
  5. Step 5: Solve for x
    x = 10,013,467,951.87/105,263.04
  6. Step 6: Final answer
    x = 95,128.05

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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.