Home / 137,390.16-205,802.16-66,102.24

Finding the Fourth Proportional to 137,390.16, 205,802.16 and 66,102.24

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Solution

The fourth proportional to 137,390.16, 205,802.16 and 66,102.24 is: 99,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,390.16 : 205,802.16 = 66,102.24 : x
  2. Step 2: Convert to fraction form
    137,390.16/205,802.16 = 66,102.24/x
  3. Step 3: Cross multiply
    137,390.16x = 205,802.16 × 66,102.24
  4. Step 4: Simplify right side
    137,390.16x = 13,603,983,772.84
  5. Step 5: Solve for x
    x = 13,603,983,772.84/137,390.16
  6. Step 6: Final answer
    x = 99,017.16

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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.