Home / 124,328.72-171,457.80-81,813.44

Finding the Fourth Proportional to 124,328.72, 171,457.80 and 81,813.44

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Solution

The fourth proportional to 124,328.72, 171,457.80 and 81,813.44 is: 112,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,328.72 : 171,457.80 = 81,813.44 : x
  2. Step 2: Convert to fraction form
    124,328.72/171,457.80 = 81,813.44/x
  3. Step 3: Cross multiply
    124,328.72x = 171,457.80 × 81,813.44
  4. Step 4: Simplify right side
    124,328.72x = 14,027,552,432.83
  5. Step 5: Solve for x
    x = 14,027,552,432.83/124,328.72
  6. Step 6: Final answer
    x = 112,826.32

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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.