Home / 147,866.55-221,641.45-105,618.51

Finding the Fourth Proportional to 147,866.55, 221,641.45 and 105,618.51

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Solution

The fourth proportional to 147,866.55, 221,641.45 and 105,618.51 is: 158,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,866.55 : 221,641.45 = 105,618.51 : x
  2. Step 2: Convert to fraction form
    147,866.55/221,641.45 = 105,618.51/x
  3. Step 3: Cross multiply
    147,866.55x = 221,641.45 × 105,618.51
  4. Step 4: Simplify right side
    147,866.55x = 23,409,439,703.24
  5. Step 5: Solve for x
    x = 23,409,439,703.24/147,866.55
  6. Step 6: Final answer
    x = 158,314.64

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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.