Home / 138,950.04-191,754.62-85,264.72

Finding the Fourth Proportional to 138,950.04, 191,754.62 and 85,264.72

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Solution

The fourth proportional to 138,950.04, 191,754.62 and 85,264.72 is: 117,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,950.04 : 191,754.62 = 85,264.72 : x
  2. Step 2: Convert to fraction form
    138,950.04/191,754.62 = 85,264.72/x
  3. Step 3: Cross multiply
    138,950.04x = 191,754.62 × 85,264.72
  4. Step 4: Simplify right side
    138,950.04x = 16,349,903,983.01
  5. Step 5: Solve for x
    x = 16,349,903,983.01/138,950.04
  6. Step 6: Final answer
    x = 117,667.50

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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.