Home / 105,287.37-145,303.59-59,358.35

Finding the Fourth Proportional to 105,287.37, 145,303.59 and 59,358.35

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Solution

The fourth proportional to 105,287.37, 145,303.59 and 59,358.35 is: 81,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,287.37 : 145,303.59 = 59,358.35 : x
  2. Step 2: Convert to fraction form
    105,287.37/145,303.59 = 59,358.35/x
  3. Step 3: Cross multiply
    105,287.37x = 145,303.59 × 59,358.35
  4. Step 4: Simplify right side
    105,287.37x = 8,624,980,624.96
  5. Step 5: Solve for x
    x = 8,624,980,624.96/105,287.37
  6. Step 6: Final answer
    x = 81,918.47

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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.