Home / 190,215.16-262,486.40-105,326.76

Finding the Fourth Proportional to 190,215.16, 262,486.40 and 105,326.76

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Solution

The fourth proportional to 190,215.16, 262,486.40 and 105,326.76 is: 145,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,215.16 : 262,486.40 = 105,326.76 : x
  2. Step 2: Convert to fraction form
    190,215.16/262,486.40 = 105,326.76/x
  3. Step 3: Cross multiply
    190,215.16x = 262,486.40 × 105,326.76
  4. Step 4: Simplify right side
    190,215.16x = 27,646,842,056.06
  5. Step 5: Solve for x
    x = 27,646,842,056.06/190,215.16
  6. Step 6: Final answer
    x = 145,345.10

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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.