Home / 190,307.63-262,624.55-105,430.16

Finding the Fourth Proportional to 190,307.63, 262,624.55 and 105,430.16

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Solution

The fourth proportional to 190,307.63, 262,624.55 and 105,430.16 is: 145,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,307.63 : 262,624.55 = 105,430.16 : x
  2. Step 2: Convert to fraction form
    190,307.63/262,624.55 = 105,430.16/x
  3. Step 3: Cross multiply
    190,307.63x = 262,624.55 × 105,430.16
  4. Step 4: Simplify right side
    190,307.63x = 27,688,546,486.15
  5. Step 5: Solve for x
    x = 27,688,546,486.15/190,307.63
  6. Step 6: Final answer
    x = 145,493.63

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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.