Home / 142,392.57-196,319.16-91,312.44

Finding the Fourth Proportional to 142,392.57, 196,319.16 and 91,312.44

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Solution

The fourth proportional to 142,392.57, 196,319.16 and 91,312.44 is: 125,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,392.57 : 196,319.16 = 91,312.44 : x
  2. Step 2: Convert to fraction form
    142,392.57/196,319.16 = 91,312.44/x
  3. Step 3: Cross multiply
    142,392.57x = 196,319.16 × 91,312.44
  4. Step 4: Simplify right side
    142,392.57x = 17,926,381,518.35
  5. Step 5: Solve for x
    x = 17,926,381,518.35/142,392.57
  6. Step 6: Final answer
    x = 125,894.08

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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.