Home / 109,985.21-151,779.58-59,684.21

Finding the Fourth Proportional to 109,985.21, 151,779.58 and 59,684.21

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Solution

The fourth proportional to 109,985.21, 151,779.58 and 59,684.21 is: 82,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,985.21 : 151,779.58 = 59,684.21 : x
  2. Step 2: Convert to fraction form
    109,985.21/151,779.58 = 59,684.21/x
  3. Step 3: Cross multiply
    109,985.21x = 151,779.58 × 59,684.21
  4. Step 4: Simplify right side
    109,985.21x = 9,058,843,987.50
  5. Step 5: Solve for x
    x = 9,058,843,987.50/109,985.21
  6. Step 6: Final answer
    x = 82,364.20

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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.