Home / 107,140.23-147,862.31-59,409.09

Finding the Fourth Proportional to 107,140.23, 147,862.31 and 59,409.09

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Solution

The fourth proportional to 107,140.23, 147,862.31 and 59,409.09 is: 81,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,140.23 : 147,862.31 = 59,409.09 : x
  2. Step 2: Convert to fraction form
    107,140.23/147,862.31 = 59,409.09/x
  3. Step 3: Cross multiply
    107,140.23x = 147,862.31 × 59,409.09
  4. Step 4: Simplify right side
    107,140.23x = 8,784,364,985.35
  5. Step 5: Solve for x
    x = 8,784,364,985.35/107,140.23
  6. Step 6: Final answer
    x = 81,989.42

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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.