Home / 154,083.15-212,632.16-86,101.47

Finding the Fourth Proportional to 154,083.15, 212,632.16 and 86,101.47

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Solution

The fourth proportional to 154,083.15, 212,632.16 and 86,101.47 is: 118,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,083.15 : 212,632.16 = 86,101.47 : x
  2. Step 2: Convert to fraction form
    154,083.15/212,632.16 = 86,101.47/x
  3. Step 3: Cross multiply
    154,083.15x = 212,632.16 × 86,101.47
  4. Step 4: Simplify right side
    154,083.15x = 18,307,941,114.77
  5. Step 5: Solve for x
    x = 18,307,941,114.77/154,083.15
  6. Step 6: Final answer
    x = 118,818.58

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1.5x scale

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.