Home / 141,647.83-195,487.79-105,775.56

Finding the Fourth Proportional to 141,647.83, 195,487.79 and 105,775.56

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Solution

The fourth proportional to 141,647.83, 195,487.79 and 105,775.56 is: 145,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,647.83 : 195,487.79 = 105,775.56 : x
  2. Step 2: Convert to fraction form
    141,647.83/195,487.79 = 105,775.56/x
  3. Step 3: Cross multiply
    141,647.83x = 195,487.79 × 105,775.56
  4. Step 4: Simplify right side
    141,647.83x = 20,677,829,931.53
  5. Step 5: Solve for x
    x = 20,677,829,931.53/141,647.83
  6. Step 6: Final answer
    x = 145,980.57

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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.