Home / 103,946.35-143,445.93-56,199.69

Finding the Fourth Proportional to 103,946.35, 143,445.93 and 56,199.69

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Solution

The fourth proportional to 103,946.35, 143,445.93 and 56,199.69 is: 77,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,946.35 : 143,445.93 = 56,199.69 : x
  2. Step 2: Convert to fraction form
    103,946.35/143,445.93 = 56,199.69/x
  3. Step 3: Cross multiply
    103,946.35x = 143,445.93 × 56,199.69
  4. Step 4: Simplify right side
    103,946.35x = 8,061,616,797.76
  5. Step 5: Solve for x
    x = 8,061,616,797.76/103,946.35
  6. Step 6: Final answer
    x = 77,555.55

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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.