Home / 142,036.95-195,928.35-91,031.55

Finding the Fourth Proportional to 142,036.95, 195,928.35 and 91,031.55

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Solution

The fourth proportional to 142,036.95, 195,928.35 and 91,031.55 is: 125,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,036.95 : 195,928.35 = 91,031.55 : x
  2. Step 2: Convert to fraction form
    142,036.95/195,928.35 = 91,031.55/x
  3. Step 3: Cross multiply
    142,036.95x = 195,928.35 × 91,031.55
  4. Step 4: Simplify right side
    142,036.95x = 17,835,661,389.44
  5. Step 5: Solve for x
    x = 17,835,661,389.44/142,036.95
  6. Step 6: Final answer
    x = 125,570.57

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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.