Home / 104,166.90-143,750.55-56,420.25

Finding the Fourth Proportional to 104,166.90, 143,750.55 and 56,420.25

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Solution

The fourth proportional to 104,166.90, 143,750.55 and 56,420.25 is: 77,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,166.90 : 143,750.55 = 56,420.25 : x
  2. Step 2: Convert to fraction form
    104,166.90/143,750.55 = 56,420.25/x
  3. Step 3: Cross multiply
    104,166.90x = 143,750.55 × 56,420.25
  4. Step 4: Simplify right side
    104,166.90x = 8,110,441,968.64
  5. Step 5: Solve for x
    x = 8,110,441,968.64/104,166.90
  6. Step 6: Final answer
    x = 77,860.07

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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.