Home / 105,199.04-145,186.02-64,911.74

Finding the Fourth Proportional to 105,199.04, 145,186.02 and 64,911.74

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Solution

The fourth proportional to 105,199.04, 145,186.02 and 64,911.74 is: 89,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,199.04 : 145,186.02 = 64,911.74 : x
  2. Step 2: Convert to fraction form
    105,199.04/145,186.02 = 64,911.74/x
  3. Step 3: Cross multiply
    105,199.04x = 145,186.02 × 64,911.74
  4. Step 4: Simplify right side
    105,199.04x = 9,424,277,181.87
  5. Step 5: Solve for x
    x = 9,424,277,181.87/105,199.04
  6. Step 6: Final answer
    x = 89,585.20

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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.