Home / 210,730.85-290,813.63-120,084.87

Finding the Fourth Proportional to 210,730.85, 290,813.63 and 120,084.87

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Solution

The fourth proportional to 210,730.85, 290,813.63 and 120,084.87 is: 165,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,730.85 : 290,813.63 = 120,084.87 : x
  2. Step 2: Convert to fraction form
    210,730.85/290,813.63 = 120,084.87/x
  3. Step 3: Cross multiply
    210,730.85x = 290,813.63 × 120,084.87
  4. Step 4: Simplify right side
    210,730.85x = 34,922,316,352.35
  5. Step 5: Solve for x
    x = 34,922,316,352.35/210,730.85
  6. Step 6: Final answer
    x = 165,720.00

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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.