Home / 190,030.28-285,157.73-70,171.17

Finding the Fourth Proportional to 190,030.28, 285,157.73 and 70,171.17

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Solution

The fourth proportional to 190,030.28, 285,157.73 and 70,171.17 is: 105,298.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,030.28 : 285,157.73 = 70,171.17 : x
  2. Step 2: Convert to fraction form
    190,030.28/285,157.73 = 70,171.17/x
  3. Step 3: Cross multiply
    190,030.28x = 285,157.73 × 70,171.17
  4. Step 4: Simplify right side
    190,030.28x = 20,009,852,363.71
  5. Step 5: Solve for x
    x = 20,009,852,363.71/190,030.28
  6. Step 6: Final answer
    x = 105,298.23

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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.