Home / 163,685.68-245,533.80-45,358.16

Finding the Fourth Proportional to 163,685.68, 245,533.80 and 45,358.16

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Solution

The fourth proportional to 163,685.68, 245,533.80 and 45,358.16 is: 68,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,685.68 : 245,533.80 = 45,358.16 : x
  2. Step 2: Convert to fraction form
    163,685.68/245,533.80 = 45,358.16/x
  3. Step 3: Cross multiply
    163,685.68x = 245,533.80 × 45,358.16
  4. Step 4: Simplify right side
    163,685.68x = 11,136,961,385.81
  5. Step 5: Solve for x
    x = 11,136,961,385.81/163,685.68
  6. Step 6: Final answer
    x = 68,038.70

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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.