Home / 163,558.20-245,045.70-138,480.60

Finding the Fourth Proportional to 163,558.20, 245,045.70 and 138,480.60

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Solution

The fourth proportional to 163,558.20, 245,045.70 and 138,480.60 is: 207,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,558.20 : 245,045.70 = 138,480.60 : x
  2. Step 2: Convert to fraction form
    163,558.20/245,045.70 = 138,480.60/x
  3. Step 3: Cross multiply
    163,558.20x = 245,045.70 × 138,480.60
  4. Step 4: Simplify right side
    163,558.20x = 33,934,075,563.42
  5. Step 5: Solve for x
    x = 33,934,075,563.42/163,558.20
  6. Step 6: Final answer
    x = 207,474.01

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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.