Home / 212,300.51-292,981.71-121,673.85

Finding the Fourth Proportional to 212,300.51, 292,981.71 and 121,673.85

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Solution

The fourth proportional to 212,300.51, 292,981.71 and 121,673.85 is: 167,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,300.51 : 292,981.71 = 121,673.85 : x
  2. Step 2: Convert to fraction form
    212,300.51/292,981.71 = 121,673.85/x
  3. Step 3: Cross multiply
    212,300.51x = 292,981.71 × 121,673.85
  4. Step 4: Simplify right side
    212,300.51x = 35,648,212,635.28
  5. Step 5: Solve for x
    x = 35,648,212,635.28/212,300.51
  6. Step 6: Final answer
    x = 167,913.93

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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.