Home / 166,206.41-249,073.64-128,111.70

Finding the Fourth Proportional to 166,206.41, 249,073.64 and 128,111.70

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Solution

The fourth proportional to 166,206.41, 249,073.64 and 128,111.70 is: 191,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,206.41 : 249,073.64 = 128,111.70 : x
  2. Step 2: Convert to fraction form
    166,206.41/249,073.64 = 128,111.70/x
  3. Step 3: Cross multiply
    166,206.41x = 249,073.64 × 128,111.70
  4. Step 4: Simplify right side
    166,206.41x = 31,909,248,699.89
  5. Step 5: Solve for x
    x = 31,909,248,699.89/166,206.41
  6. Step 6: Final answer
    x = 191,985.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.