Home / 103,448,125.40-155,172,188.10-84,953,978.60

Finding the Fourth Proportional to 103,448,125.40, 155,172,188.10 and 84,953,978.60

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Solution

The fourth proportional to 103,448,125.40, 155,172,188.10 and 84,953,978.60 is: 127,430,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,448,125.40 : 155,172,188.10 = 84,953,978.60 : x
  2. Step 2: Convert to fraction form
    103,448,125.40/155,172,188.10 = 84,953,978.60/x
  3. Step 3: Cross multiply
    103,448,125.40x = 155,172,188.10 × 84,953,978.60
  4. Step 4: Simplify right side
    103,448,125.40x = 13,182,494,747,162,574
  5. Step 5: Solve for x
    x = 13,182,494,747,162,574/103,448,125.40
  6. Step 6: Final answer
    x = 127,430,967.90

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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.