Home / 106,702.58-147,280.24-70,430.50

Finding the Fourth Proportional to 106,702.58, 147,280.24 and 70,430.50

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Solution

The fourth proportional to 106,702.58, 147,280.24 and 70,430.50 is: 97,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,702.58 : 147,280.24 = 70,430.50 : x
  2. Step 2: Convert to fraction form
    106,702.58/147,280.24 = 70,430.50/x
  3. Step 3: Cross multiply
    106,702.58x = 147,280.24 × 70,430.50
  4. Step 4: Simplify right side
    106,702.58x = 10,373,020,491.09
  5. Step 5: Solve for x
    x = 10,373,020,491.09/106,702.58
  6. Step 6: Final answer
    x = 97,214.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.