Home / 210,970.21-316,389.27-61,220.86

Finding the Fourth Proportional to 210,970.21, 316,389.27 and 61,220.86

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Solution

The fourth proportional to 210,970.21, 316,389.27 and 61,220.86 is: 91,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,970.21 : 316,389.27 = 61,220.86 : x
  2. Step 2: Convert to fraction form
    210,970.21/316,389.27 = 61,220.86/x
  3. Step 3: Cross multiply
    210,970.21x = 316,389.27 × 61,220.86
  4. Step 4: Simplify right side
    210,970.21x = 19,369,623,204.17
  5. Step 5: Solve for x
    x = 19,369,623,204.17/210,970.21
  6. Step 6: Final answer
    x = 91,812.12

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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.