Home / 210,631.37-290,723.53-120,041.07

Finding the Fourth Proportional to 210,631.37, 290,723.53 and 120,041.07

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Solution

The fourth proportional to 210,631.37, 290,723.53 and 120,041.07 is: 165,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,631.37 : 290,723.53 = 120,041.07 : x
  2. Step 2: Convert to fraction form
    210,631.37/290,723.53 = 120,041.07/x
  3. Step 3: Cross multiply
    210,631.37x = 290,723.53 × 120,041.07
  4. Step 4: Simplify right side
    210,631.37x = 34,898,763,315.27
  5. Step 5: Solve for x
    x = 34,898,763,315.27/210,631.37
  6. Step 6: Final answer
    x = 165,686.45

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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.