Home / 212,121.76-292,772.58-134,547.22

Finding the Fourth Proportional to 212,121.76, 292,772.58 and 134,547.22

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Solution

The fourth proportional to 212,121.76, 292,772.58 and 134,547.22 is: 185,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,121.76 : 292,772.58 = 134,547.22 : x
  2. Step 2: Convert to fraction form
    212,121.76/292,772.58 = 134,547.22/x
  3. Step 3: Cross multiply
    212,121.76x = 292,772.58 × 134,547.22
  4. Step 4: Simplify right side
    212,121.76x = 39,391,736,731.23
  5. Step 5: Solve for x
    x = 39,391,736,731.23/212,121.76
  6. Step 6: Final answer
    x = 185,703.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.