Home / 153,837.07-212,286.29-85,848.71

Finding the Fourth Proportional to 153,837.07, 212,286.29 and 85,848.71

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Solution

The fourth proportional to 153,837.07, 212,286.29 and 85,848.71 is: 118,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,837.07 : 212,286.29 = 85,848.71 : x
  2. Step 2: Convert to fraction form
    153,837.07/212,286.29 = 85,848.71/x
  3. Step 3: Cross multiply
    153,837.07x = 212,286.29 × 85,848.71
  4. Step 4: Simplify right side
    153,837.07x = 18,224,503,300.38
  5. Step 5: Solve for x
    x = 18,224,503,300.38/153,837.07
  6. Step 6: Final answer
    x = 118,466.27

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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.