Home / 152,818.72-210,886.40-84,831.68

Finding the Fourth Proportional to 152,818.72, 210,886.40 and 84,831.68

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Solution

The fourth proportional to 152,818.72, 210,886.40 and 84,831.68 is: 117,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,818.72 : 210,886.40 = 84,831.68 : x
  2. Step 2: Convert to fraction form
    152,818.72/210,886.40 = 84,831.68/x
  3. Step 3: Cross multiply
    152,818.72x = 210,886.40 × 84,831.68
  4. Step 4: Simplify right side
    152,818.72x = 17,889,847,601.15
  5. Step 5: Solve for x
    x = 17,889,847,601.15/152,818.72
  6. Step 6: Final answer
    x = 117,065.81

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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.