Home / 119,421.36-178,078.46-118,355.40

Finding the Fourth Proportional to 119,421.36, 178,078.46 and 118,355.40

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Solution

The fourth proportional to 119,421.36, 178,078.46 and 118,355.40 is: 176,488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,421.36 : 178,078.46 = 118,355.40 : x
  2. Step 2: Convert to fraction form
    119,421.36/178,078.46 = 118,355.40/x
  3. Step 3: Cross multiply
    119,421.36x = 178,078.46 × 118,355.40
  4. Step 4: Simplify right side
    119,421.36x = 21,076,546,772.91
  5. Step 5: Solve for x
    x = 21,076,546,772.91/119,421.36
  6. Step 6: Final answer
    x = 176,488.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.