Home / 164,020.80-245,877.60-128,462.40

Finding the Fourth Proportional to 164,020.80, 245,877.60 and 128,462.40

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Solution

The fourth proportional to 164,020.80, 245,877.60 and 128,462.40 is: 192,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,020.80 : 245,877.60 = 128,462.40 : x
  2. Step 2: Convert to fraction form
    164,020.80/245,877.60 = 128,462.40/x
  3. Step 3: Cross multiply
    164,020.80x = 245,877.60 × 128,462.40
  4. Step 4: Simplify right side
    164,020.80x = 31,586,026,602.24
  5. Step 5: Solve for x
    x = 31,586,026,602.24/164,020.80
  6. Step 6: Final answer
    x = 192,573.30

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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.