Home / 104,635.40-144,402.75-56,887.72

Finding the Fourth Proportional to 104,635.40, 144,402.75 and 56,887.72

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Solution

The fourth proportional to 104,635.40, 144,402.75 and 56,887.72 is: 78,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,635.40 : 144,402.75 = 56,887.72 : x
  2. Step 2: Convert to fraction form
    104,635.40/144,402.75 = 56,887.72/x
  3. Step 3: Cross multiply
    104,635.40x = 144,402.75 × 56,887.72
  4. Step 4: Simplify right side
    104,635.40x = 8,214,742,848.22
  5. Step 5: Solve for x
    x = 8,214,742,848.22/104,635.40
  6. Step 6: Final answer
    x = 78,508.26

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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.