Home / 141,726.88-195,574.80-81,307.36

Finding the Fourth Proportional to 141,726.88, 195,574.80 and 81,307.36

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Solution

The fourth proportional to 141,726.88, 195,574.80 and 81,307.36 is: 112,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,726.88 : 195,574.80 = 81,307.36 : x
  2. Step 2: Convert to fraction form
    141,726.88/195,574.80 = 81,307.36/x
  3. Step 3: Cross multiply
    141,726.88x = 195,574.80 × 81,307.36
  4. Step 4: Simplify right side
    141,726.88x = 15,901,670,670.53
  5. Step 5: Solve for x
    x = 15,901,670,670.53/141,726.88
  6. Step 6: Final answer
    x = 112,199.40

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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.