Home / 118,916.22-164,081.28-70,509.20

Finding the Fourth Proportional to 118,916.22, 164,081.28 and 70,509.20

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Solution

The fourth proportional to 118,916.22, 164,081.28 and 70,509.20 is: 97,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,916.22 : 164,081.28 = 70,509.20 : x
  2. Step 2: Convert to fraction form
    118,916.22/164,081.28 = 70,509.20/x
  3. Step 3: Cross multiply
    118,916.22x = 164,081.28 × 70,509.20
  4. Step 4: Simplify right side
    118,916.22x = 11,569,240,197.98
  5. Step 5: Solve for x
    x = 11,569,240,197.98/118,916.22
  6. Step 6: Final answer
    x = 97,289.00

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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.