Home / 210,719.45-316,122.38-70,479.29

Finding the Fourth Proportional to 210,719.45, 316,122.38 and 70,479.29

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Solution

The fourth proportional to 210,719.45, 316,122.38 and 70,479.29 is: 105,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719.45 : 316,122.38 = 70,479.29 : x
  2. Step 2: Convert to fraction form
    210,719.45/316,122.38 = 70,479.29/x
  3. Step 3: Cross multiply
    210,719.45x = 316,122.38 × 70,479.29
  4. Step 4: Simplify right side
    210,719.45x = 22,280,081,597.72
  5. Step 5: Solve for x
    x = 22,280,081,597.72/210,719.45
  6. Step 6: Final answer
    x = 105,733.39

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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.