Home / 190,985.34-286,041.98-91,215.84

Finding the Fourth Proportional to 190,985.34, 286,041.98 and 91,215.84

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Solution

The fourth proportional to 190,985.34, 286,041.98 and 91,215.84 is: 136,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,985.34 : 286,041.98 = 91,215.84 : x
  2. Step 2: Convert to fraction form
    190,985.34/286,041.98 = 91,215.84/x
  3. Step 3: Cross multiply
    190,985.34x = 286,041.98 × 91,215.84
  4. Step 4: Simplify right side
    190,985.34x = 26,091,559,480.96
  5. Step 5: Solve for x
    x = 26,091,559,480.96/190,985.34
  6. Step 6: Final answer
    x = 136,615.51

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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.