Home / 212,389.90-293,099.07-121,751.08

Finding the Fourth Proportional to 212,389.90, 293,099.07 and 121,751.08

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Solution

The fourth proportional to 212,389.90, 293,099.07 and 121,751.08 is: 168,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,389.90 : 293,099.07 = 121,751.08 : x
  2. Step 2: Convert to fraction form
    212,389.90/293,099.07 = 121,751.08/x
  3. Step 3: Cross multiply
    212,389.90x = 293,099.07 × 121,751.08
  4. Step 4: Simplify right side
    212,389.90x = 35,685,128,319.50
  5. Step 5: Solve for x
    x = 35,685,128,319.50/212,389.90
  6. Step 6: Final answer
    x = 168,017.07

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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.