Home / 197,153.40-295,730.10-72,478.20

Finding the Fourth Proportional to 197,153.40, 295,730.10 and 72,478.20

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Solution

The fourth proportional to 197,153.40, 295,730.10 and 72,478.20 is: 108,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,153.40 : 295,730.10 = 72,478.20 : x
  2. Step 2: Convert to fraction form
    197,153.40/295,730.10 = 72,478.20/x
  3. Step 3: Cross multiply
    197,153.40x = 295,730.10 × 72,478.20
  4. Step 4: Simplify right side
    197,153.40x = 21,433,985,333.82
  5. Step 5: Solve for x
    x = 21,433,985,333.82/197,153.40
  6. Step 6: Final answer
    x = 108,717.30

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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.