Home / 210,645.51-290,692.74-120,000.13

Finding the Fourth Proportional to 210,645.51, 290,692.74 and 120,000.13

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Solution

The fourth proportional to 210,645.51, 290,692.74 and 120,000.13 is: 165,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,645.51 : 290,692.74 = 120,000.13 : x
  2. Step 2: Convert to fraction form
    210,645.51/290,692.74 = 120,000.13/x
  3. Step 3: Cross multiply
    210,645.51x = 290,692.74 × 120,000.13
  4. Step 4: Simplify right side
    210,645.51x = 34,883,166,590.06
  5. Step 5: Solve for x
    x = 34,883,166,590.06/210,645.51
  6. Step 6: Final answer
    x = 165,601.28

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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.