Home / 210,970.85-291,147.78-120,341.57

Finding the Fourth Proportional to 210,970.85, 291,147.78 and 120,341.57

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Solution

The fourth proportional to 210,970.85, 291,147.78 and 120,341.57 is: 166,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,970.85 : 291,147.78 = 120,341.57 : x
  2. Step 2: Convert to fraction form
    210,970.85/291,147.78 = 120,341.57/x
  3. Step 3: Cross multiply
    210,970.85x = 291,147.78 × 120,341.57
  4. Step 4: Simplify right side
    210,970.85x = 35,037,180,947.21
  5. Step 5: Solve for x
    x = 35,037,180,947.21/210,970.85
  6. Step 6: Final answer
    x = 166,075.93

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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.