Home / 142,081.16-196,068.99-77,548.25

Finding the Fourth Proportional to 142,081.16, 196,068.99 and 77,548.25

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Solution

The fourth proportional to 142,081.16, 196,068.99 and 77,548.25 is: 107,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,081.16 : 196,068.99 = 77,548.25 : x
  2. Step 2: Convert to fraction form
    142,081.16/196,068.99 = 77,548.25/x
  3. Step 3: Cross multiply
    142,081.16x = 196,068.99 × 77,548.25
  4. Step 4: Simplify right side
    142,081.16x = 15,204,806,073.42
  5. Step 5: Solve for x
    x = 15,204,806,073.42/142,081.16
  6. Step 6: Final answer
    x = 107,014.94

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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.