Home / 103,960.19-143,465.15-56,213.57

Finding the Fourth Proportional to 103,960.19, 143,465.15 and 56,213.57

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Solution

The fourth proportional to 103,960.19, 143,465.15 and 56,213.57 is: 77,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,960.19 : 143,465.15 = 56,213.57 : x
  2. Step 2: Convert to fraction form
    103,960.19/143,465.15 = 56,213.57/x
  3. Step 3: Cross multiply
    103,960.19x = 143,465.15 × 56,213.57
  4. Step 4: Simplify right side
    103,960.19x = 8,064,688,252.09
  5. Step 5: Solve for x
    x = 8,064,688,252.09/103,960.19
  6. Step 6: Final answer
    x = 77,574.77

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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.