Home / 100,193.01-138,360.02-64,445.07

Finding the Fourth Proportional to 100,193.01, 138,360.02 and 64,445.07

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Solution

The fourth proportional to 100,193.01, 138,360.02 and 64,445.07 is: 88,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,193.01 : 138,360.02 = 64,445.07 : x
  2. Step 2: Convert to fraction form
    100,193.01/138,360.02 = 64,445.07/x
  3. Step 3: Cross multiply
    100,193.01x = 138,360.02 × 64,445.07
  4. Step 4: Simplify right side
    100,193.01x = 8,916,621,370.73
  5. Step 5: Solve for x
    x = 8,916,621,370.73/100,193.01
  6. Step 6: Final answer
    x = 88,994.45

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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.