Home / 119,903.04-165,529.64-77,485.77

Finding the Fourth Proportional to 119,903.04, 165,529.64 and 77,485.77

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Solution

The fourth proportional to 119,903.04, 165,529.64 and 77,485.77 is: 106,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,903.04 : 165,529.64 = 77,485.77 : x
  2. Step 2: Convert to fraction form
    119,903.04/165,529.64 = 77,485.77/x
  3. Step 3: Cross multiply
    119,903.04x = 165,529.64 × 77,485.77
  4. Step 4: Simplify right side
    119,903.04x = 12,826,191,613.22
  5. Step 5: Solve for x
    x = 12,826,191,613.22/119,903.04
  6. Step 6: Final answer
    x = 106,971.36

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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.