Home / 141,693.36-195,535.92-78,030.72

Finding the Fourth Proportional to 141,693.36, 195,535.92 and 78,030.72

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Solution

The fourth proportional to 141,693.36, 195,535.92 and 78,030.72 is: 107,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,693.36 : 195,535.92 = 78,030.72 : x
  2. Step 2: Convert to fraction form
    141,693.36/195,535.92 = 78,030.72/x
  3. Step 3: Cross multiply
    141,693.36x = 195,535.92 × 78,030.72
  4. Step 4: Simplify right side
    141,693.36x = 15,257,808,623.46
  5. Step 5: Solve for x
    x = 15,257,808,623.46/141,693.36
  6. Step 6: Final answer
    x = 107,681.89

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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.