Home / 145,121.03-217,597.47-56,270.51

Finding the Fourth Proportional to 145,121.03, 217,597.47 and 56,270.51

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Solution

The fourth proportional to 145,121.03, 217,597.47 and 56,270.51 is: 84,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,121.03 : 217,597.47 = 56,270.51 : x
  2. Step 2: Convert to fraction form
    145,121.03/217,597.47 = 56,270.51/x
  3. Step 3: Cross multiply
    145,121.03x = 217,597.47 × 56,270.51
  4. Step 4: Simplify right side
    145,121.03x = 12,244,320,611.61
  5. Step 5: Solve for x
    x = 12,244,320,611.61/145,121.03
  6. Step 6: Final answer
    x = 84,373.17

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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.