Home / 154,092.16-212,648.64-86,114.56

Finding the Fourth Proportional to 154,092.16, 212,648.64 and 86,114.56

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Solution

The fourth proportional to 154,092.16, 212,648.64 and 86,114.56 is: 118,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,092.16 : 212,648.64 = 86,114.56 : x
  2. Step 2: Convert to fraction form
    154,092.16/212,648.64 = 86,114.56/x
  3. Step 3: Cross multiply
    154,092.16x = 212,648.64 × 86,114.56
  4. Step 4: Simplify right side
    154,092.16x = 18,312,144,068.20
  5. Step 5: Solve for x
    x = 18,312,144,068.20/154,092.16
  6. Step 6: Final answer
    x = 118,838.91

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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.