Home / 210,669.40-316,003.38-70,427.80

Finding the Fourth Proportional to 210,669.40, 316,003.38 and 70,427.80

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Solution

The fourth proportional to 210,669.40, 316,003.38 and 70,427.80 is: 105,641.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,669.40 : 316,003.38 = 70,427.80 : x
  2. Step 2: Convert to fraction form
    210,669.40/316,003.38 = 70,427.80/x
  3. Step 3: Cross multiply
    210,669.40x = 316,003.38 × 70,427.80
  4. Step 4: Simplify right side
    210,669.40x = 22,255,422,845.96
  5. Step 5: Solve for x
    x = 22,255,422,845.96/210,669.40
  6. Step 6: Final answer
    x = 105,641.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.