Home / 211,111.65-291,323.28-115,599.90

Finding the Fourth Proportional to 211,111.65, 291,323.28 and 115,599.90

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Solution

The fourth proportional to 211,111.65, 291,323.28 and 115,599.90 is: 159,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,111.65 : 291,323.28 = 115,599.90 : x
  2. Step 2: Convert to fraction form
    211,111.65/291,323.28 = 115,599.90/x
  3. Step 3: Cross multiply
    211,111.65x = 291,323.28 × 115,599.90
  4. Step 4: Simplify right side
    211,111.65x = 33,676,942,035.67
  5. Step 5: Solve for x
    x = 33,676,942,035.67/211,111.65
  6. Step 6: Final answer
    x = 159,521.95

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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.