Home / 155,585.79-233,300.43-90,691.08

Finding the Fourth Proportional to 155,585.79, 233,300.43 and 90,691.08

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Solution

The fourth proportional to 155,585.79, 233,300.43 and 90,691.08 is: 135,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,585.79 : 233,300.43 = 90,691.08 : x
  2. Step 2: Convert to fraction form
    155,585.79/233,300.43 = 90,691.08/x
  3. Step 3: Cross multiply
    155,585.79x = 233,300.43 × 90,691.08
  4. Step 4: Simplify right side
    155,585.79x = 21,158,267,961.16
  5. Step 5: Solve for x
    x = 21,158,267,961.16/155,585.79
  6. Step 6: Final answer
    x = 135,991.01

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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.