Home / 131,252.40-196,975.80-86,864.40

Finding the Fourth Proportional to 131,252.40, 196,975.80 and 86,864.40

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Solution

The fourth proportional to 131,252.40, 196,975.80 and 86,864.40 is: 130,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,252.40 : 196,975.80 = 86,864.40 : x
  2. Step 2: Convert to fraction form
    131,252.40/196,975.80 = 86,864.40/x
  3. Step 3: Cross multiply
    131,252.40x = 196,975.80 × 86,864.40
  4. Step 4: Simplify right side
    131,252.40x = 17,110,184,681.52
  5. Step 5: Solve for x
    x = 17,110,184,681.52/131,252.40
  6. Step 6: Final answer
    x = 130,360.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.