Home / 142,886.74-197,143.78-112,577.98

Finding the Fourth Proportional to 142,886.74, 197,143.78 and 112,577.98

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Solution

The fourth proportional to 142,886.74, 197,143.78 and 112,577.98 is: 155,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,886.74 : 197,143.78 = 112,577.98 : x
  2. Step 2: Convert to fraction form
    142,886.74/197,143.78 = 112,577.98/x
  3. Step 3: Cross multiply
    142,886.74x = 197,143.78 × 112,577.98
  4. Step 4: Simplify right side
    142,886.74x = 22,194,048,521.96
  5. Step 5: Solve for x
    x = 22,194,048,521.96/142,886.74
  6. Step 6: Final answer
    x = 155,326.16

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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.