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Finding the Fourth Proportional to 145,730.51, 218,506.71 and 69,852.27

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Solution

The fourth proportional to 145,730.51, 218,506.71 and 69,852.27 is: 104,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,730.51 : 218,506.71 = 69,852.27 : x
  2. Step 2: Convert to fraction form
    145,730.51/218,506.71 = 69,852.27/x
  3. Step 3: Cross multiply
    145,730.51x = 218,506.71 × 69,852.27
  4. Step 4: Simplify right side
    145,730.51x = 15,263,189,703.73
  5. Step 5: Solve for x
    x = 15,263,189,703.73/145,730.51
  6. Step 6: Final answer
    x = 104,735.72

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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.