Home / 163,618.50-245,430.78-51,296.20

Finding the Fourth Proportional to 163,618.50, 245,430.78 and 51,296.20

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Solution

The fourth proportional to 163,618.50, 245,430.78 and 51,296.20 is: 76,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618.50 : 245,430.78 = 51,296.20 : x
  2. Step 2: Convert to fraction form
    163,618.50/245,430.78 = 51,296.20/x
  3. Step 3: Cross multiply
    163,618.50x = 245,430.78 × 51,296.20
  4. Step 4: Simplify right side
    163,618.50x = 12,589,666,377.04
  5. Step 5: Solve for x
    x = 12,589,666,377.04/163,618.50
  6. Step 6: Final answer
    x = 76,945.25

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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.