Home / 210,364.06-315,562.50-70,122.68

Finding the Fourth Proportional to 210,364.06, 315,562.50 and 70,122.68

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Solution

The fourth proportional to 210,364.06, 315,562.50 and 70,122.68 is: 105,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364.06 : 315,562.50 = 70,122.68 : x
  2. Step 2: Convert to fraction form
    210,364.06/315,562.50 = 70,122.68/x
  3. Step 3: Cross multiply
    210,364.06x = 315,562.50 × 70,122.68
  4. Step 4: Simplify right side
    210,364.06x = 22,128,088,207.50
  5. Step 5: Solve for x
    x = 22,128,088,207.50/210,364.06
  6. Step 6: Final answer
    x = 105,189.49

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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.