Home / 104,435.91-144,117.72-56,688.21

Finding the Fourth Proportional to 104,435.91, 144,117.72 and 56,688.21

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Solution

The fourth proportional to 104,435.91, 144,117.72 and 56,688.21 is: 78,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,435.91 : 144,117.72 = 56,688.21 : x
  2. Step 2: Convert to fraction form
    104,435.91/144,117.72 = 56,688.21/x
  3. Step 3: Cross multiply
    104,435.91x = 144,117.72 × 56,688.21
  4. Step 4: Simplify right side
    104,435.91x = 8,169,775,576.08
  5. Step 5: Solve for x
    x = 8,169,775,576.08/104,435.91
  6. Step 6: Final answer
    x = 78,227.65

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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.