Home / 210,005.20-289,782.12-119,328.40

Finding the Fourth Proportional to 210,005.20, 289,782.12 and 119,328.40

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Solution

The fourth proportional to 210,005.20, 289,782.12 and 119,328.40 is: 164,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.20 : 289,782.12 = 119,328.40 : x
  2. Step 2: Convert to fraction form
    210,005.20/289,782.12 = 119,328.40/x
  3. Step 3: Cross multiply
    210,005.20x = 289,782.12 × 119,328.40
  4. Step 4: Simplify right side
    210,005.20x = 34,579,236,728.21
  5. Step 5: Solve for x
    x = 34,579,236,728.21/210,005.20
  6. Step 6: Final answer
    x = 164,658.95

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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.