Home / 185,430.36-278,075.70-67,072.44

Finding the Fourth Proportional to 185,430.36, 278,075.70 and 67,072.44

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Solution

The fourth proportional to 185,430.36, 278,075.70 and 67,072.44 is: 100,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,430.36 : 278,075.70 = 67,072.44 : x
  2. Step 2: Convert to fraction form
    185,430.36/278,075.70 = 67,072.44/x
  3. Step 3: Cross multiply
    185,430.36x = 278,075.70 × 67,072.44
  4. Step 4: Simplify right side
    185,430.36x = 18,651,215,703.71
  5. Step 5: Solve for x
    x = 18,651,215,703.71/185,430.36
  6. Step 6: Final answer
    x = 100,583.40

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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.