Home / 210,582.15-315,889.79-70,341.27

Finding the Fourth Proportional to 210,582.15, 315,889.79 and 70,341.27

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Solution

The fourth proportional to 210,582.15, 315,889.79 and 70,341.27 is: 105,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,582.15 : 315,889.79 = 70,341.27 : x
  2. Step 2: Convert to fraction form
    210,582.15/315,889.79 = 70,341.27/x
  3. Step 3: Cross multiply
    210,582.15x = 315,889.79 × 70,341.27
  4. Step 4: Simplify right side
    210,582.15x = 22,220,088,656.93
  5. Step 5: Solve for x
    x = 22,220,088,656.93/210,582.15
  6. Step 6: Final answer
    x = 105,517.44

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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.