Home / 131,534.84-181,535.86-74,185.94

Finding the Fourth Proportional to 131,534.84, 181,535.86 and 74,185.94

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Solution

The fourth proportional to 131,534.84, 181,535.86 and 74,185.94 is: 102,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,534.84 : 181,535.86 = 74,185.94 : x
  2. Step 2: Convert to fraction form
    131,534.84/181,535.86 = 74,185.94/x
  3. Step 3: Cross multiply
    131,534.84x = 181,535.86 × 74,185.94
  4. Step 4: Simplify right side
    131,534.84x = 13,467,408,417.81
  5. Step 5: Solve for x
    x = 13,467,408,417.81/131,534.84
  6. Step 6: Final answer
    x = 102,386.63

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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.