Home / 156,985.20-235,477.80-145,004.40

Finding the Fourth Proportional to 156,985.20, 235,477.80 and 145,004.40

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Solution

The fourth proportional to 156,985.20, 235,477.80 and 145,004.40 is: 217,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.20 : 235,477.80 = 145,004.40 : x
  2. Step 2: Convert to fraction form
    156,985.20/235,477.80 = 145,004.40/x
  3. Step 3: Cross multiply
    156,985.20x = 235,477.80 × 145,004.40
  4. Step 4: Simplify right side
    156,985.20x = 34,145,317,102.32
  5. Step 5: Solve for x
    x = 34,145,317,102.32/156,985.20
  6. Step 6: Final answer
    x = 217,506.60

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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.