Home / 104,587.21-144,331.31-56,840.67

Finding the Fourth Proportional to 104,587.21, 144,331.31 and 56,840.67

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Solution

The fourth proportional to 104,587.21, 144,331.31 and 56,840.67 is: 78,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,587.21 : 144,331.31 = 56,840.67 : x
  2. Step 2: Convert to fraction form
    104,587.21/144,331.31 = 56,840.67/x
  3. Step 3: Cross multiply
    104,587.21x = 144,331.31 × 56,840.67
  4. Step 4: Simplify right side
    104,587.21x = 8,203,888,362.38
  5. Step 5: Solve for x
    x = 8,203,888,362.38/104,587.21
  6. Step 6: Final answer
    x = 78,440.65

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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.