Home / 105,292.36-145,289.46-67,617.64

Finding the Fourth Proportional to 105,292.36, 145,289.46 and 67,617.64

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Solution

The fourth proportional to 105,292.36, 145,289.46 and 67,617.64 is: 93,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,292.36 : 145,289.46 = 67,617.64 : x
  2. Step 2: Convert to fraction form
    105,292.36/145,289.46 = 67,617.64/x
  3. Step 3: Cross multiply
    105,292.36x = 145,289.46 × 67,617.64
  4. Step 4: Simplify right side
    105,292.36x = 9,824,130,402.07
  5. Step 5: Solve for x
    x = 9,824,130,402.07/105,292.36
  6. Step 6: Final answer
    x = 93,303.35

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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.