Home / 163,931.10-245,853.45-51,611.10

Finding the Fourth Proportional to 163,931.10, 245,853.45 and 51,611.10

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Solution

The fourth proportional to 163,931.10, 245,853.45 and 51,611.10 is: 77,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,931.10 : 245,853.45 = 51,611.10 : x
  2. Step 2: Convert to fraction form
    163,931.10/245,853.45 = 51,611.10/x
  3. Step 3: Cross multiply
    163,931.10x = 245,853.45 × 51,611.10
  4. Step 4: Simplify right side
    163,931.10x = 12,688,766,993.30
  5. Step 5: Solve for x
    x = 12,688,766,993.30/163,931.10
  6. Step 6: Final answer
    x = 77,403.05

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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.