Home / 190,830.40-286,000.80-106,590.40

Finding the Fourth Proportional to 190,830.40, 286,000.80 and 106,590.40

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Solution

The fourth proportional to 190,830.40, 286,000.80 and 106,590.40 is: 159,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.40 : 286,000.80 = 106,590.40 : x
  2. Step 2: Convert to fraction form
    190,830.40/286,000.80 = 106,590.40/x
  3. Step 3: Cross multiply
    190,830.40x = 286,000.80 × 106,590.40
  4. Step 4: Simplify right side
    190,830.40x = 30,484,939,672.32
  5. Step 5: Solve for x
    x = 30,484,939,672.32/190,830.40
  6. Step 6: Final answer
    x = 159,748.86

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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.