Home / 138,184.02-190,712.34-102,475.98

Finding the Fourth Proportional to 138,184.02, 190,712.34 and 102,475.98

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Solution

The fourth proportional to 138,184.02, 190,712.34 and 102,475.98 is: 141,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,184.02 : 190,712.34 = 102,475.98 : x
  2. Step 2: Convert to fraction form
    138,184.02/190,712.34 = 102,475.98/x
  3. Step 3: Cross multiply
    138,184.02x = 190,712.34 × 102,475.98
  4. Step 4: Simplify right side
    138,184.02x = 19,543,433,939.59
  5. Step 5: Solve for x
    x = 19,543,433,939.59/138,184.02
  6. Step 6: Final answer
    x = 141,430.49

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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.