Home / 215,420.50-323,130.75-96,953.41

Finding the Fourth Proportional to 215,420.50, 323,130.75 and 96,953.41

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Solution

The fourth proportional to 215,420.50, 323,130.75 and 96,953.41 is: 145,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,420.50 : 323,130.75 = 96,953.41 : x
  2. Step 2: Convert to fraction form
    215,420.50/323,130.75 = 96,953.41/x
  3. Step 3: Cross multiply
    215,420.50x = 323,130.75 × 96,953.41
  4. Step 4: Simplify right side
    215,420.50x = 31,328,628,088.36
  5. Step 5: Solve for x
    x = 31,328,628,088.36/215,420.50
  6. Step 6: Final answer
    x = 145,430.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.