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Finding the Fourth Proportional to 145,873.77, 218,685.83 and 55,980.98

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Solution

The fourth proportional to 145,873.77, 218,685.83 and 55,980.98 is: 83,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,873.77 : 218,685.83 = 55,980.98 : x
  2. Step 2: Convert to fraction form
    145,873.77/218,685.83 = 55,980.98/x
  3. Step 3: Cross multiply
    145,873.77x = 218,685.83 × 55,980.98
  4. Step 4: Simplify right side
    145,873.77x = 12,242,247,075.51
  5. Step 5: Solve for x
    x = 12,242,247,075.51/145,873.77
  6. Step 6: Final answer
    x = 83,923.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.