Home / 213,030.45-293,999.58-121,178.52

Finding the Fourth Proportional to 213,030.45, 293,999.58 and 121,178.52

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Solution

The fourth proportional to 213,030.45, 293,999.58 and 121,178.52 is: 167,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,030.45 : 293,999.58 = 121,178.52 : x
  2. Step 2: Convert to fraction form
    213,030.45/293,999.58 = 121,178.52/x
  3. Step 3: Cross multiply
    213,030.45x = 293,999.58 × 121,178.52
  4. Step 4: Simplify right side
    213,030.45x = 35,626,433,985.02
  5. Step 5: Solve for x
    x = 35,626,433,985.02/213,030.45
  6. Step 6: Final answer
    x = 167,236.35

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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.