Home / 141,407.45-195,143.02-77,749.35

Finding the Fourth Proportional to 141,407.45, 195,143.02 and 77,749.35

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Solution

The fourth proportional to 141,407.45, 195,143.02 and 77,749.35 is: 107,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.45 : 195,143.02 = 77,749.35 : x
  2. Step 2: Convert to fraction form
    141,407.45/195,143.02 = 77,749.35/x
  3. Step 3: Cross multiply
    141,407.45x = 195,143.02 × 77,749.35
  4. Step 4: Simplify right side
    141,407.45x = 15,172,242,767.66
  5. Step 5: Solve for x
    x = 15,172,242,767.66/141,407.45
  6. Step 6: Final answer
    x = 107,294.51

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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.