Home / 103,390,289.44-142,702,912.72-64,261,617.12

Finding the Fourth Proportional to 103,390,289.44, 142,702,912.72 and 64,261,617.12

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Solution

The fourth proportional to 103,390,289.44, 142,702,912.72 and 64,261,617.12 is: 88,696,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390,289.44 : 142,702,912.72 = 64,261,617.12 : x
  2. Step 2: Convert to fraction form
    103,390,289.44/142,702,912.72 = 64,261,617.12/x
  3. Step 3: Cross multiply
    103,390,289.44x = 142,702,912.72 × 64,261,617.12
  4. Step 4: Simplify right side
    103,390,289.44x = 9,170,319,939,121,418
  5. Step 5: Solve for x
    x = 9,170,319,939,121,418/103,390,289.44
  6. Step 6: Final answer
    x = 88,696,143.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.