Home / 210,415.04-315,625.44-70,173.76

Finding the Fourth Proportional to 210,415.04, 315,625.44 and 70,173.76

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Solution

The fourth proportional to 210,415.04, 315,625.44 and 70,173.76 is: 105,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,415.04 : 315,625.44 = 70,173.76 : x
  2. Step 2: Convert to fraction form
    210,415.04/315,625.44 = 70,173.76/x
  3. Step 3: Cross multiply
    210,415.04x = 315,625.44 × 70,173.76
  4. Step 4: Simplify right side
    210,415.04x = 22,148,623,876.45
  5. Step 5: Solve for x
    x = 22,148,623,876.45/210,415.04
  6. Step 6: Final answer
    x = 105,261.60

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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.