Home / 191,762.10-287,643.15-145,106.10

Finding the Fourth Proportional to 191,762.10, 287,643.15 and 145,106.10

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Solution

The fourth proportional to 191,762.10, 287,643.15 and 145,106.10 is: 217,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,762.10 : 287,643.15 = 145,106.10 : x
  2. Step 2: Convert to fraction form
    191,762.10/287,643.15 = 145,106.10/x
  3. Step 3: Cross multiply
    191,762.10x = 287,643.15 × 145,106.10
  4. Step 4: Simplify right side
    191,762.10x = 41,738,775,688.22
  5. Step 5: Solve for x
    x = 41,738,775,688.22/191,762.10
  6. Step 6: Final answer
    x = 217,659.15

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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.