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Finding the Fourth Proportional to 103,802.63, 143,247.63 and 56,055.98

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Solution

The fourth proportional to 103,802.63, 143,247.63 and 56,055.98 is: 77,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,802.63 : 143,247.63 = 56,055.98 : x
  2. Step 2: Convert to fraction form
    103,802.63/143,247.63 = 56,055.98/x
  3. Step 3: Cross multiply
    103,802.63x = 143,247.63 × 56,055.98
  4. Step 4: Simplify right side
    103,802.63x = 8,029,885,355.88
  5. Step 5: Solve for x
    x = 8,029,885,355.88/103,802.63
  6. Step 6: Final answer
    x = 77,357.25

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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.