Home / 154,087.51-230,812.89-90,712.39

Finding the Fourth Proportional to 154,087.51, 230,812.89 and 90,712.39

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Solution

The fourth proportional to 154,087.51, 230,812.89 and 90,712.39 is: 135,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,087.51 : 230,812.89 = 90,712.39 : x
  2. Step 2: Convert to fraction form
    154,087.51/230,812.89 = 90,712.39/x
  3. Step 3: Cross multiply
    154,087.51x = 230,812.89 × 90,712.39
  4. Step 4: Simplify right side
    154,087.51x = 20,937,588,894.71
  5. Step 5: Solve for x
    x = 20,937,588,894.71/154,087.51
  6. Step 6: Final answer
    x = 135,881.16

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1.5x scale

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.