Home / 206,973.78-310,492.89-66,746.58

Finding the Fourth Proportional to 206,973.78, 310,492.89 and 66,746.58

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Solution

The fourth proportional to 206,973.78, 310,492.89 and 66,746.58 is: 100,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,973.78 : 310,492.89 = 66,746.58 : x
  2. Step 2: Convert to fraction form
    206,973.78/310,492.89 = 66,746.58/x
  3. Step 3: Cross multiply
    206,973.78x = 310,492.89 × 66,746.58
  4. Step 4: Simplify right side
    206,973.78x = 20,724,338,521.82
  5. Step 5: Solve for x
    x = 20,724,338,521.82/206,973.78
  6. Step 6: Final answer
    x = 100,130.26

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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.