Home / 105,792.08-145,972.68-68,061.20

Finding the Fourth Proportional to 105,792.08, 145,972.68 and 68,061.20

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Solution

The fourth proportional to 105,792.08, 145,972.68 and 68,061.20 is: 93,911.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,792.08 : 145,972.68 = 68,061.20 : x
  2. Step 2: Convert to fraction form
    105,792.08/145,972.68 = 68,061.20/x
  3. Step 3: Cross multiply
    105,792.08x = 145,972.68 × 68,061.20
  4. Step 4: Simplify right side
    105,792.08x = 9,935,075,768.02
  5. Step 5: Solve for x
    x = 9,935,075,768.02/105,792.08
  6. Step 6: Final answer
    x = 93,911.34

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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.