Home / 131,386.07-181,312.78-70,956.73

Finding the Fourth Proportional to 131,386.07, 181,312.78 and 70,956.73

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Solution

The fourth proportional to 131,386.07, 181,312.78 and 70,956.73 is: 97,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.07 : 181,312.78 = 70,956.73 : x
  2. Step 2: Convert to fraction form
    131,386.07/181,312.78 = 70,956.73/x
  3. Step 3: Cross multiply
    131,386.07x = 181,312.78 × 70,956.73
  4. Step 4: Simplify right side
    131,386.07x = 12,865,361,976.01
  5. Step 5: Solve for x
    x = 12,865,361,976.01/131,386.07
  6. Step 6: Final answer
    x = 97,920.29

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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.