Home / 134,838.45-186,073.63-74,408.30

Finding the Fourth Proportional to 134,838.45, 186,073.63 and 74,408.30

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Solution

The fourth proportional to 134,838.45, 186,073.63 and 74,408.30 is: 102,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,838.45 : 186,073.63 = 74,408.30 : x
  2. Step 2: Convert to fraction form
    134,838.45/186,073.63 = 74,408.30/x
  3. Step 3: Cross multiply
    134,838.45x = 186,073.63 × 74,408.30
  4. Step 4: Simplify right side
    134,838.45x = 13,845,422,483.13
  5. Step 5: Solve for x
    x = 13,845,422,483.13/134,838.45
  6. Step 6: Final answer
    x = 102,681.56

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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.