Home / 118,898.21-164,100.34-90,312.50

Finding the Fourth Proportional to 118,898.21, 164,100.34 and 90,312.50

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Solution

The fourth proportional to 118,898.21, 164,100.34 and 90,312.50 is: 124,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,898.21 : 164,100.34 = 90,312.50 : x
  2. Step 2: Convert to fraction form
    118,898.21/164,100.34 = 90,312.50/x
  3. Step 3: Cross multiply
    118,898.21x = 164,100.34 × 90,312.50
  4. Step 4: Simplify right side
    118,898.21x = 14,820,311,956.25
  5. Step 5: Solve for x
    x = 14,820,311,956.25/118,898.21
  6. Step 6: Final answer
    x = 124,647.06

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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.