Home / 103,816.49-143,266.70-56,069.84

Finding the Fourth Proportional to 103,816.49, 143,266.70 and 56,069.84

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Solution

The fourth proportional to 103,816.49, 143,266.70 and 56,069.84 is: 77,376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,816.49 : 143,266.70 = 56,069.84 : x
  2. Step 2: Convert to fraction form
    103,816.49/143,266.70 = 56,069.84/x
  3. Step 3: Cross multiply
    103,816.49x = 143,266.70 × 56,069.84
  4. Step 4: Simplify right side
    103,816.49x = 8,032,941,444.67
  5. Step 5: Solve for x
    x = 8,032,941,444.67/103,816.49
  6. Step 6: Final answer
    x = 77,376.36

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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.