Home / 103,880.88-143,355.66-56,134.23

Finding the Fourth Proportional to 103,880.88, 143,355.66 and 56,134.23

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Solution

The fourth proportional to 103,880.88, 143,355.66 and 56,134.23 is: 77,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,880.88 : 143,355.66 = 56,134.23 : x
  2. Step 2: Convert to fraction form
    103,880.88/143,355.66 = 56,134.23/x
  3. Step 3: Cross multiply
    103,880.88x = 143,355.66 × 56,134.23
  4. Step 4: Simplify right side
    103,880.88x = 8,047,159,590.24
  5. Step 5: Solve for x
    x = 8,047,159,590.24/103,880.88
  6. Step 6: Final answer
    x = 77,465.26

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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.