Home / 147,365.48-203,365.05-83,706.77

Finding the Fourth Proportional to 147,365.48, 203,365.05 and 83,706.77

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Solution

The fourth proportional to 147,365.48, 203,365.05 and 83,706.77 is: 115,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,365.48 : 203,365.05 = 83,706.77 : x
  2. Step 2: Convert to fraction form
    147,365.48/203,365.05 = 83,706.77/x
  3. Step 3: Cross multiply
    147,365.48x = 203,365.05 × 83,706.77
  4. Step 4: Simplify right side
    147,365.48x = 17,023,031,660.90
  5. Step 5: Solve for x
    x = 17,023,031,660.90/147,365.48
  6. Step 6: Final answer
    x = 115,515.73

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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.