Home / 352,759.30-528,985.86-128,045.08

Finding the Fourth Proportional to 352,759.30, 528,985.86 and 128,045.08

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Solution

The fourth proportional to 352,759.30, 528,985.86 and 128,045.08 is: 192,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,759.30 : 528,985.86 = 128,045.08 : x
  2. Step 2: Convert to fraction form
    352,759.30/528,985.86 = 128,045.08/x
  3. Step 3: Cross multiply
    352,759.30x = 528,985.86 × 128,045.08
  4. Step 4: Simplify right side
    352,759.30x = 67,734,036,762.57
  5. Step 5: Solve for x
    x = 67,734,036,762.57/352,759.30
  6. Step 6: Final answer
    x = 192,012.05

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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.