Home / 210,655.98-290,684.37-120,006.55

Finding the Fourth Proportional to 210,655.98, 290,684.37 and 120,006.55

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Solution

The fourth proportional to 210,655.98, 290,684.37 and 120,006.55 is: 165,597.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,655.98 : 290,684.37 = 120,006.55 : x
  2. Step 2: Convert to fraction form
    210,655.98/290,684.37 = 120,006.55/x
  3. Step 3: Cross multiply
    210,655.98x = 290,684.37 × 120,006.55
  4. Step 4: Simplify right side
    210,655.98x = 34,884,026,329.17
  5. Step 5: Solve for x
    x = 34,884,026,329.17/210,655.98
  6. Step 6: Final answer
    x = 165,597.13

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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.