Home / 152,784.38-210,881.20-104,405.90

Finding the Fourth Proportional to 152,784.38, 210,881.20 and 104,405.90

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Solution

The fourth proportional to 152,784.38, 210,881.20 and 104,405.90 is: 144,106.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,784.38 : 210,881.20 = 104,405.90 : x
  2. Step 2: Convert to fraction form
    152,784.38/210,881.20 = 104,405.90/x
  3. Step 3: Cross multiply
    152,784.38x = 210,881.20 × 104,405.90
  4. Step 4: Simplify right side
    152,784.38x = 22,017,241,479.08
  5. Step 5: Solve for x
    x = 22,017,241,479.08/152,784.38
  6. Step 6: Final answer
    x = 144,106.63

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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.