Home / 189,919.68-262,117.58-118,322.76

Finding the Fourth Proportional to 189,919.68, 262,117.58 and 118,322.76

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Solution

The fourth proportional to 189,919.68, 262,117.58 and 118,322.76 is: 163,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,919.68 : 262,117.58 = 118,322.76 : x
  2. Step 2: Convert to fraction form
    189,919.68/262,117.58 = 118,322.76/x
  3. Step 3: Cross multiply
    189,919.68x = 262,117.58 × 118,322.76
  4. Step 4: Simplify right side
    189,919.68x = 31,014,475,510.12
  5. Step 5: Solve for x
    x = 31,014,475,510.12/189,919.68
  6. Step 6: Final answer
    x = 163,303.12

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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.