Home / 145,981.47-218,680.61-133,646.79

Finding the Fourth Proportional to 145,981.47, 218,680.61 and 133,646.79

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Solution

The fourth proportional to 145,981.47, 218,680.61 and 133,646.79 is: 200,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,981.47 : 218,680.61 = 133,646.79 : x
  2. Step 2: Convert to fraction form
    145,981.47/218,680.61 = 133,646.79/x
  3. Step 3: Cross multiply
    145,981.47x = 218,680.61 × 133,646.79
  4. Step 4: Simplify right side
    145,981.47x = 29,225,960,893.51
  5. Step 5: Solve for x
    x = 29,225,960,893.51/145,981.47
  6. Step 6: Final answer
    x = 200,203.22

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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.