Home / 104,389.79-144,057.74-56,643.12

Finding the Fourth Proportional to 104,389.79, 144,057.74 and 56,643.12

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Solution

The fourth proportional to 104,389.79, 144,057.74 and 56,643.12 is: 78,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,389.79 : 144,057.74 = 56,643.12 : x
  2. Step 2: Convert to fraction form
    104,389.79/144,057.74 = 56,643.12/x
  3. Step 3: Cross multiply
    104,389.79x = 144,057.74 × 56,643.12
  4. Step 4: Simplify right side
    104,389.79x = 8,159,879,570.53
  5. Step 5: Solve for x
    x = 8,159,879,570.53/104,389.79
  6. Step 6: Final answer
    x = 78,167.41

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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.