Home / 153,475.22-211,828.48-103,145.06

Finding the Fourth Proportional to 153,475.22, 211,828.48 and 103,145.06

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Solution

The fourth proportional to 153,475.22, 211,828.48 and 103,145.06 is: 142,362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,475.22 : 211,828.48 = 103,145.06 : x
  2. Step 2: Convert to fraction form
    153,475.22/211,828.48 = 103,145.06/x
  3. Step 3: Cross multiply
    153,475.22x = 211,828.48 × 103,145.06
  4. Step 4: Simplify right side
    153,475.22x = 21,849,061,551.02
  5. Step 5: Solve for x
    x = 21,849,061,551.02/153,475.22
  6. Step 6: Final answer
    x = 142,362.14

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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.