Home / 157,365.07-235,767.73-90,667.40

Finding the Fourth Proportional to 157,365.07, 235,767.73 and 90,667.40

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Solution

The fourth proportional to 157,365.07, 235,767.73 and 90,667.40 is: 135,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,365.07 : 235,767.73 = 90,667.40 : x
  2. Step 2: Convert to fraction form
    157,365.07/235,767.73 = 90,667.40/x
  3. Step 3: Cross multiply
    157,365.07x = 235,767.73 × 90,667.40
  4. Step 4: Simplify right side
    157,365.07x = 21,376,447,083.00
  5. Step 5: Solve for x
    x = 21,376,447,083.00/157,365.07
  6. Step 6: Final answer
    x = 135,839.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.