Home / 133,344.02-183,999.64-78,897.86

Finding the Fourth Proportional to 133,344.02, 183,999.64 and 78,897.86

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Solution

The fourth proportional to 133,344.02, 183,999.64 and 78,897.86 is: 108,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,344.02 : 183,999.64 = 78,897.86 : x
  2. Step 2: Convert to fraction form
    133,344.02/183,999.64 = 78,897.86/x
  3. Step 3: Cross multiply
    133,344.02x = 183,999.64 × 78,897.86
  4. Step 4: Simplify right side
    133,344.02x = 14,517,177,705.26
  5. Step 5: Solve for x
    x = 14,517,177,705.26/133,344.02
  6. Step 6: Final answer
    x = 108,870.10

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1.5x scale

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.