Home / 142,256.98-196,312.35-77,724.84

Finding the Fourth Proportional to 142,256.98, 196,312.35 and 77,724.84

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Solution

The fourth proportional to 142,256.98, 196,312.35 and 77,724.84 is: 107,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,256.98 : 196,312.35 = 77,724.84 : x
  2. Step 2: Convert to fraction form
    142,256.98/196,312.35 = 77,724.84/x
  3. Step 3: Cross multiply
    142,256.98x = 196,312.35 × 77,724.84
  4. Step 4: Simplify right side
    142,256.98x = 15,258,345,993.77
  5. Step 5: Solve for x
    x = 15,258,345,993.77/142,256.98
  6. Step 6: Final answer
    x = 107,259.03

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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.