Home / 153,747.81-212,170.50-84,837.92

Finding the Fourth Proportional to 153,747.81, 212,170.50 and 84,837.92

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Solution

The fourth proportional to 153,747.81, 212,170.50 and 84,837.92 is: 117,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,747.81 : 212,170.50 = 84,837.92 : x
  2. Step 2: Convert to fraction form
    153,747.81/212,170.50 = 84,837.92/x
  3. Step 3: Cross multiply
    153,747.81x = 212,170.50 × 84,837.92
  4. Step 4: Simplify right side
    153,747.81x = 18,000,102,844.51
  5. Step 5: Solve for x
    x = 18,000,102,844.51/153,747.81
  6. Step 6: Final answer
    x = 117,075.51

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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.