Home / 210,525.18-290,528.55-115,035.90

Finding the Fourth Proportional to 210,525.18, 290,528.55 and 115,035.90

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Solution

The fourth proportional to 210,525.18, 290,528.55 and 115,035.90 is: 158,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,525.18 : 290,528.55 = 115,035.90 : x
  2. Step 2: Convert to fraction form
    210,525.18/290,528.55 = 115,035.90/x
  3. Step 3: Cross multiply
    210,525.18x = 290,528.55 × 115,035.90
  4. Step 4: Simplify right side
    210,525.18x = 33,421,213,224.95
  5. Step 5: Solve for x
    x = 33,421,213,224.95/210,525.18
  6. Step 6: Final answer
    x = 158,751.62

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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.