Home / 210,569.04-316,072.32-121,995.60

Finding the Fourth Proportional to 210,569.04, 316,072.32 and 121,995.60

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Solution

The fourth proportional to 210,569.04, 316,072.32 and 121,995.60 is: 183,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,569.04 : 316,072.32 = 121,995.60 : x
  2. Step 2: Convert to fraction form
    210,569.04/316,072.32 = 121,995.60/x
  3. Step 3: Cross multiply
    210,569.04x = 316,072.32 × 121,995.60
  4. Step 4: Simplify right side
    210,569.04x = 38,559,432,321.79
  5. Step 5: Solve for x
    x = 38,559,432,321.79/210,569.04
  6. Step 6: Final answer
    x = 183,120.14

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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.