Home / 153,475.53-211,828.91-103,145.37

Finding the Fourth Proportional to 153,475.53, 211,828.91 and 103,145.37

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Solution

The fourth proportional to 153,475.53, 211,828.91 and 103,145.37 is: 142,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,475.53 : 211,828.91 = 103,145.37 : x
  2. Step 2: Convert to fraction form
    153,475.53/211,828.91 = 103,145.37/x
  3. Step 3: Cross multiply
    153,475.53x = 211,828.91 × 103,145.37
  4. Step 4: Simplify right side
    153,475.53x = 21,849,170,782.92
  5. Step 5: Solve for x
    x = 21,849,170,782.92/153,475.53
  6. Step 6: Final answer
    x = 142,362.57

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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.