Home / 190,214.40-262,492.80-105,331.20

Finding the Fourth Proportional to 190,214.40, 262,492.80 and 105,331.20

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Solution

The fourth proportional to 190,214.40, 262,492.80 and 105,331.20 is: 145,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,214.40 : 262,492.80 = 105,331.20 : x
  2. Step 2: Convert to fraction form
    190,214.40/262,492.80 = 105,331.20/x
  3. Step 3: Cross multiply
    190,214.40x = 262,492.80 × 105,331.20
  4. Step 4: Simplify right side
    190,214.40x = 27,648,681,615.36
  5. Step 5: Solve for x
    x = 27,648,681,615.36/190,214.40
  6. Step 6: Final answer
    x = 145,355.35

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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.