Home / 190,328.60-262,643.12-105,440.60

Finding the Fourth Proportional to 190,328.60, 262,643.12 and 105,440.60

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Solution

The fourth proportional to 190,328.60, 262,643.12 and 105,440.60 is: 145,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,328.60 : 262,643.12 = 105,440.60 : x
  2. Step 2: Convert to fraction form
    190,328.60/262,643.12 = 105,440.60/x
  3. Step 3: Cross multiply
    190,328.60x = 262,643.12 × 105,440.60
  4. Step 4: Simplify right side
    190,328.60x = 27,693,248,158.67
  5. Step 5: Solve for x
    x = 27,693,248,158.67/190,328.60
  6. Step 6: Final answer
    x = 145,502.30

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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.