Home / 127,312.29-190,607.58-105,792.21

Finding the Fourth Proportional to 127,312.29, 190,607.58 and 105,792.21

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Solution

The fourth proportional to 127,312.29, 190,607.58 and 105,792.21 is: 158,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.29 : 190,607.58 = 105,792.21 : x
  2. Step 2: Convert to fraction form
    127,312.29/190,607.58 = 105,792.21/x
  3. Step 3: Cross multiply
    127,312.29x = 190,607.58 × 105,792.21
  4. Step 4: Simplify right side
    127,312.29x = 20,164,797,130.95
  5. Step 5: Solve for x
    x = 20,164,797,130.95/127,312.29
  6. Step 6: Final answer
    x = 158,388.46

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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.